1977 Moscow bombings

A series of three terrorist bombings in Moscow on 8 January 1977 killed seven people and seriously injured 37 others. No one claimed responsibility for the bombings, although three members of an Armeniannationalist organization were executed early in 1979 after a KGB investigation and a secret trial. Some Soviet dissidents said that the suspects had an alibi. Soon after the event Andrei Sakharov issued a public appeal, expressing concern that the bombings might "be a new provocation on the part of the organs of repression". According to historian Jay Bergman, "who actually caused the explosion has never been determined conclusively".