A car carrying the servicemen came under small arms fire, the country’s Defense Ministry has said

A group of Russian peacekeepers was killed in Nagorno-Karabakh on Wednesday, when their vehicle came under small-arms fire, the Russian Defense Ministry has said.  

The peacekeepers were returning to an observation post when their car was attacked by unknown assailants. All the servicemen inside the car were killed on the spot, the military said, without revealing the exact number of casualties.

Source: RT