Satellite images show traffic jams in Nagorno-Karabakh

STORY: The Armenians of Karabakh - part of Azerbaijan that had been beyond Baku's control since the dissolution of the Soviet Union - began fleeing this week after their forces were routed in a lightning operation by Azerbaijan's military.

At least 28,120 of the 120,000 ethnic Armenians who call Nagorno-Karabakh home had already crossed into Armenia, the Armenian government said on Tuesday.

The Lachin corridor connects the region to Armenia.