Armenia and Azerbaijan are pulling back their troops from the previously disputed Tavush-Gazakh border area, the TASS news agency cited Armenia's national security council as saying on Friday.
Azerbaijan's border service has also taken control of four villages in the Gazakh district on the border with Armenia under an agreement struck with Yerevan this month, the Russian state news agency TASS reported on Friday.
In April, Armenia said it would return uninhabited villages to Azerbaijan, which both sides said was a milestone on the road towards a peace deal between Yerevan and Baku.