Kiorr (Kha Kior) is a Palaungic language of Luang Namtha Province, Laos. Diffloth & Zide (1992) had listed Con as a Lametic language. However, it is treated as a dialect of Kiorr in Sidwell (2010). Kiorr could be a historical name for the Saamtaav people.Proschan, Frank. (1996)
A Survey of Khmuic and Palaungic Languages in Laos and Vietnam
In: Pan-Asiatic Linguistics Proceedings of the Fourth International Symposium on Languages and Linguistics. Institute of Language and Culture for Rural Development. Mahidol University at Salaya Thailand.

References

Palaungic languages Languages of Laos {{AustroAsiatic-lang-stub