Russia expressed concern on Thursday over escalating tensions between Armenia and Azerbaijan as a key road linking Armenia to the disputed Nagorno-Karabakh enclave remained blocked for the fourth day.
The two countries have fought repeated wars over Nagorno-Karabakh - internationally recognised as part of Azerbaijan but home to about 120,000 ethnic Armenians - since the 1991 collapse of the Soviet Union. As recently as September, more than 200 soldiers were killed in a flare-up of fighting.
A group of Azerbaijanis claiming to be environmental activists blocked the Lachin corridor, the only land route for people, goods, food and medical supplies to reach Nagorno-Karabakh from Armenia across Azerbaijani territory, at the start of this week.
