Armenia gets Putin's backing; Russia calls for de-escalation after clashes with Azerbaijan

Moscow has expressed 'serious concern' over mounting tensions in the Nagorno-Karabakh region, where five people were killed after a shoot-out between Armenian and Azerbaijani troops. Echoing Armenia's account, Russia said Azerbaijani troops fired on a car with local law enforcement officials in the region. Azerbaijan has rubbished Russia's claims and accused Moscow of distorting facts. Watch this video for details.