Smuggling tunnels are
secret passage
Secret passages, also commonly referred to as hidden passages or secret tunnels, are hidden routes used for stealthy travel, escape, or movement of people and goods. They are sometimes inside buildings leading to secret rooms.
Others allow pe ...
s used for the
smuggling
Smuggling is the illegal transportation of objects, substances, information or people, such as out of a house or buildings, into a prison, or across an international border, in violation of applicable laws or other regulations. More broadly, soc ...
of
goods
In economics, goods are anything that is good, usually in the sense that it provides welfare or utility to someone. Alan V. Deardorff, 2006. ''Terms Of Trade: Glossary of International Economics'', World Scientific. Online version: Deardorffs ...
and
people
The term "the people" refers to the public or Common people, common mass of people of a polity. As such it is a concept of human rights law, international law as well as constitutional law, particularly used for claims of popular sovereignty. I ...
. The term is also used where the tunnels are built in response to a
siege
A siege () . is a military blockade of a city, or fortress, with the intent of conquering by attrition, or by well-prepared assault. Siege warfare (also called siegecrafts or poliorcetics) is a form of constant, low-intensity conflict charact ...
.
Europe
Bosnia

The
Sarajevo Tunnel operated during the
Siege of Sarajevo as a passage underneath the
no-man's land of the city's (closed) airport, providing a vital smuggling link for the beleaguered city residents. Guns were smuggled into the city and people were smuggled out. After the
Bosnian War
The Bosnian War ( / Рат у Босни и Херцеговини) was an international armed conflict that took place in Republic of Bosnia and Herzegovina, Bosnia and Herzegovina between 1992 and 1995. Following several earlier violent incid ...
, the Sarajevo Tunnel Museum was built onto the historic private house whose cellar served as the entrance to Sarajevo Tunnel.
;In popular culture
*It features in the British film ''
Welcome to Sarajevo'' (1997).
*A similar tunnel in an unknown city, probably
Belgrade
Belgrade is the Capital city, capital and List of cities in Serbia, largest city of Serbia. It is located at the confluence of the Sava and Danube rivers and at the crossroads of the Pannonian Basin, Pannonian Plain and the Balkan Peninsula. T ...
, features in a dark
Serbian satire
Satire is a genre of the visual, literary, and performing arts, usually in the form of fiction and less frequently non-fiction, in which vices, follies, abuses, and shortcomings are held up to ridicule, often with the intent of exposin ...
of conflict, ''
Underground'' (1995).
Germany
More than 70 tunnels were used to smuggle people under the
Berlin Wall
The Berlin Wall (, ) was a guarded concrete Separation barrier, barrier that encircled West Berlin from 1961 to 1989, separating it from East Berlin and the East Germany, German Democratic Republic (GDR; East Germany). Construction of the B ...
between West Berlin and East Berlin.
Ukraine–Slovakia
A 700-meter smuggling tunnel with a
narrow gauge railway
A narrow-gauge railway (narrow-gauge railroad in the US) is a railway with a track gauge (distance between the rails) narrower than . Most narrow-gauge railways are between and .
Since narrow-gauge railways are usually built with Minimum railw ...
was revealed in July 2012 between
Uzhhorod
Uzhhorod (, ; , ; , ) is a List of cities in Ukraine, city and List of hromadas of Ukraine, municipality on the Uzh, Uzh River in western Ukraine, at the border with Slovakia and near the border with Hungary. The city is approximately equidistan ...
,
Ukraine
Ukraine is a country in Eastern Europe. It is the List of European countries by area, second-largest country in Europe after Russia, which Russia–Ukraine border, borders it to the east and northeast. Ukraine also borders Belarus to the nor ...
, and
Vyšné Nemecké,
Slovakia
Slovakia, officially the Slovak Republic, is a landlocked country in Central Europe. It is bordered by Poland to the north, Ukraine to the east, Hungary to the south, Austria to the west, and the Czech Republic to the northwest. Slovakia's m ...
, at the border of
Schengen Area
The Schengen Area ( , ) encompasses European countries that have officially abolished border controls at their common borders. As an element within the wider area of freedom, security and justice (AFSJ) policy of the European Union (EU), it ...
. The tunnel used professional mining and security technologies. It was used primarily for smuggling of cigarettes.
United Kingdom
Many villages on the southern coast of England have a local legend of a smugglers' tunnel, although the entrances to most of the actual smugglers' tunnels have been lost or bricked up.
Some tunnel stories turn out to be plausible, such as the tunnel at
Hayle
Hayle (, "estuary") is a port town and civil parishes in England, civil parish in west Cornwall, England, United Kingdom. It is situated at the mouth of the Hayle River (which discharges into St Ives Bay) and is approximately northeast of ...
in
Cornwall
Cornwall (; or ) is a Ceremonial counties of England, ceremonial county in South West England. It is also one of the Celtic nations and the homeland of the Cornish people. The county is bordered by the Atlantic Ocean to the north and west, ...
, which seems to have been built specifically for smuggling. However, tunnels often double as a storm drain or some other functional channel, or else as an extension of a natural fissure in the rock as at
Methleigh and
Porthcothan,
but tunnels and caches (both wholly excavated and formed by extending natural formations) are more commonplace where covert landings in areas with few sheltered beaches exposed smugglers to the attentions of the
Revenue Men.
While many sites are rudimentary, extensive workings have been found which show evidence of skillful excavation, strongly implying the assistance of
tin miners.
Beith in
North Ayrshire was a notorious haunt of smugglers at one time, and legend has it that a tunnel ran from the town centre down to
Kilbirnie Loch.
North America
US–Canada
In early 2005, a group of Canadian drug smugglers took up the idea, and constructed a tunnel between a
greenhouse
A greenhouse is a structure that is designed to regulate the temperature and humidity of the environment inside. There are different types of greenhouses, but they all have large areas covered with transparent materials that let sunlight pass an ...
in
Langley, British Columbia and the basement of a house in
Lynden, Washington
Lynden is a city in Whatcom County, Washington, United States. It is located 15 miles (24 km) north of Bellingham, the county seat and principal city of the Bellingham, Washington, Bellingham Metropolitan Area. It is the second largest city ...
, which lay across the ditch marking the
Canada–US border. The house on the Langley side was on
0 Avenue ("Zero Avenue"), which runs parallel to the border and is the baseline of Langley's avenue-numbering system. They bought the two properties and began construction work. Authorities were alerted when a neighbor noticed the large-scale construction work being undertaken in the greenhouse. Inspection revealed that tons of construction material were entering, and piles of earth were coming out.
It became known within a short time, by both American and Canadian
border authorities, that a tunnel was being built. Video and audio devices were installed secretly by
United States customs officials both at the termini and in the tunnel itself. On July 14, the tunnel having been completed, the first packs of
marijuana
Cannabis (), commonly known as marijuana (), weed, pot, and ganja, List of slang names for cannabis, among other names, is a non-chemically uniform psychoactive drug from the ''Cannabis'' plant. Native to Central or South Asia, cannabis has ...
began going through. Officials raided the home soon afterward and arrested the three men, who then appeared before court in Seattle. The tunnel was sealed and the roads above it were rebuilt, but the US house where the tunnel exited still exists.
US–Mexico

As of September 30, 2015, 183 illicit cross-border tunnels have been discovered in the United States since Fiscal Year 1990.
On January 25, 2006, a tunnel was found on the
US-Mexico border by a joint US Drug Enforcement Administration, US Immigration and Customs Enforcement, and US Border Patrol task force. The long tunnel runs from a warehouse near the Tijuana airport to a warehouse in San Diego. When discovered, it was devoid of people, but it did contain of marijuana. It was high and up to deep. The floor was made of cement, and the walls were exposed clay, with lights lining one side, a ventilation system to keep fresh air circulating, and a water drainage system to remove infiltrating ground water. Authorities said it was unclear how long the tunnel had been in operation.
On January 30, US Immigrations and Customs Enforcement agents arrested a Mexican citizen who was linked to the tunnel via the US warehouse, operated by V&F Distributors LLC. On the Friday before, January 27, immigration authorities reportedly received information that the Mexican
cartel
A cartel is a group of independent market participants who collaborate with each other as well as agreeing not to compete with each other in order to improve their profits and dominate the market. A cartel is an organization formed by producers ...
behind the operation was threatening the lives of any agents involved with the construction or occupation of the tunnel. US Customs and Immigration, however, pledged to protect them as best they could. Authorities believe Tijuana's Arellano-Felix drug syndicate, or some other well-known drug cartel, was behind the building and operation of the tunnel.
On November 26, 2010, a tunnel was discovered linking Tijuana to
Otay Mesa, San Diego, California. In the same month another tunnel was discovered between these two cities. Both tunnels were discovered by a San Diego task force and are believed to be the work of Mexico's
Sinaloa cartel. Over of cannabis was found and confiscated between the two.
An analysis of US-Mexico smuggling tunnels, the US-Canada smuggling tunnel, and the smuggling tunnels in Rafah, Gaza Strip, was completed by Lichtenwald and Perri as part of a transnational analysis of smuggling tunnels. Lichtenwald and Perri outlined sources and methods for evaluating which tunnels are used by different populations in various parts of the world to smuggle contraband that does not threaten a nation's security, which tunnels that smuggle contraband that does threaten a nation's security, and hybrid tunnels that smuggle contraband that threaten a nation's security as well as that which does not.
In December 2012, a tunnel 3 feet in diameter and 100 yards long, with electricity and ventilation, was found near the
Nogales, Arizona
Nogales (; English: or ) is a city in and the county seat of Santa Cruz County, Arizona. The population was 20,837 at the 2010 United States Census, 2010 census and estimated 20,103 in 2019. Nogales forms part of the larger Tucson–Nogales L ...
, port of entry.
On February 14, 2014, another underground drug tunnel was discovered in Nogales.
The tunnel spanned , or longer than 1.5 American football fields. The tunnel was being used to smuggle marijuana and other drugs into the US. Another of marijuana was seized after federal agents stopped a vehicle they saw driving away from the residence. Some of marijuana and of heroin were found inside the tunnel. Three people have been arrested in connection with the bust.
On March 19, 2020, a tunnel connecting Tijuana to San Diego was discovered by the San Diego Tunnel Task Force. The tunnel extended and was outfitted with an underground
rail system,
ventilation
Ventilation may refer to:
* Ventilation (physiology), the movement of air between the environment and the lungs via inhalation and exhalation
** Mechanical ventilation, in medicine, using artificial methods to assist breathing
*** Respirator, a ma ...
, and
lighting
Lighting or illumination is the deliberate use of light to achieve practical or aesthetic effects. Lighting includes the use of both artificial light sources like lamps and light fixtures, as well as natural illumination by capturing daylight. ...
. Over of
cocaine
Cocaine is a tropane alkaloid and central nervous system stimulant, derived primarily from the leaves of two South American coca plants, ''Erythroxylum coca'' and ''Erythroxylum novogranatense, E. novogranatense'', which are cultivated a ...
, of
methamphetamine
Methamphetamine (contracted from ) is a potent central nervous system (CNS) stimulant that is mainly used as a recreational drug use, recreational or Performance-enhancing substance, performance-enhancing drug and less commonly as a secon ...
, of
heroin
Heroin, also known as diacetylmorphine and diamorphine among other names, is a morphinan opioid substance synthesized from the Opium, dried latex of the Papaver somniferum, opium poppy; it is mainly used as a recreational drug for its eupho ...
, of
marijuana
Cannabis (), commonly known as marijuana (), weed, pot, and ganja, List of slang names for cannabis, among other names, is a non-chemically uniform psychoactive drug from the ''Cannabis'' plant. Native to Central or South Asia, cannabis has ...
and of
fentanyl
Fentanyl is a highly potent synthetic piperidine opioid primarily used as an analgesic (pain medication). It is 30 to 50 times more Potency (pharmacology), potent than heroin and 50 to 100 times more potent than morphine. Its primary Medici ...
were seized.
In May 2022, a tunnel connecting Tijuana to San Diego was discovered. The tunnel extended "six football fields" in length and was outfitted with an underground rail system, ventilation, and an electricity supply. Over of cocaine, of meth and of heroin were seized.
Asia
India–Pakistan
Pakistan has been using Tunnels to infiltrate terrorists and smuggle weapons, explosives, contrabands to India. These terrorists belong to globally sanctioned proscribed organizations like
LeT,
JeM and
Hizbul Mujahideen.
Since 1997, a total of 12 tunnels (5 in Punjab frontier and 7 in Jammu frontier) have been discovered by
BSF under the
India-Pakistan Border, with latest being discovered in 2021. The Tunnel discovered in 2021 was also used by Mohammad Umar Farooq, the Main planner of
2019 Pulwama attack in
Jammu and Kashmir.
These tunnels are constructed by Engineer Wing of
Pakistan Rangers
The Pakistan Rangers () are a pair of paramilitary federal law enforcement corps' in Pakistan. The two corps are the Punjab Rangers (operating in Punjab province with headquarters in Lahore) and the Sindh Rangers (operating in Sindh province w ...
and
Pakistan Army Corps of Engineers.
India–Bangladesh
Throughout the years,
Border Security Force has discovered several smuggling tunnels linking India with Bangladesh, these tunnels are used by Bangladeshi criminals to smuggle cattle, contraband and illegal immigrants.
North Korea–South Korea
As of 1990, as many as
four tunnels linking North Korea to South Korea have been discovered by South Korean authorities under the Demilitarized Zone. It is believed that the tunnels were planned as a military invasion route or to facilitate intelligence operations as opposed to smuggling controlled items. It is believed that there may be up to 20 tunnels crossing the border, however neither government has acknowledged the discovery or existence other than the four known tunnels.
The
third tunnel is now open to South Korean visitors as a tourist site, however the tunnel has been permanently blocked with three concrete barriers at the Military Demarcation Line between North and South Korea. It can be accessed via a second tunnel dug by South Korean authorities in 1978 to intercept the then yet incomplete North Korean tunnel. The North Korean portion was long, with a maximum height of , wide, and at a depth of below ground. It has been estimated that up to 30,000 men per hour could travel through the tunnel with light weaponry.
Middle East
The Gaza Strip smuggling tunnels connect
Egypt
Egypt ( , ), officially the Arab Republic of Egypt, is a country spanning the Northeast Africa, northeast corner of Africa and Western Asia, southwest corner of Asia via the Sinai Peninsula. It is bordered by the Mediterranean Sea to northe ...
and the
Gaza Strip
The Gaza Strip, also known simply as Gaza, is a small territory located on the eastern coast of the Mediterranean Sea; it is the smaller of the two Palestinian territories, the other being the West Bank, that make up the State of Palestine. I ...
, bypassing the
Egypt–Gaza barrier built by Israel along the international border established by the
Egypt–Israel peace treaty
The Egypt–Israel peace treaty was signed in Washington, D.C., United States, on 26 March 1979, following the 1978 Camp David Accords. The Egypt–Israel treaty was signed by Anwar Sadat, President of Egypt, and Menachem Begin, Prime Minist ...
. The tunnels pass under the
Philadelphi corridor, an area specified in the
Oslo accords
The Oslo Accords are a pair of interim agreements between Israel and the Palestine Liberation Organization (PLO): the Oslo I Accord, signed in Washington, D.C., in 1993; and the Oslo II Accord, signed in Taba, Egypt, in 1995. They marked the st ...
as being under
Israeli military control, in order to secure the border with Egypt.
See also
*
Secret passage
Secret passages, also commonly referred to as hidden passages or secret tunnels, are hidden routes used for stealthy travel, escape, or movement of people and goods. They are sometimes inside buildings leading to secret rooms.
Others allow pe ...
References
Further reading
* (article with text, picture of tunnel, and map)
* ((EXACT LOCATION))
{{DEFAULTSORT:Smuggling Tunnel
Tunnels
Smuggling
Crime
Mexico–United States border
Types of secret places
Subterranea (geography)
Illegal drug trade techniques
Deception