Armenia and Azerbaijan on Sunday traded accusations of opening fire at their border near the breakaway Nagorno-Karabakh region. This has led to fresh flare-up of tension between the two countries that battled each other in six-week war last year. The conflict claimed more than 6500 lives.

"Units of the Azerbaijani Armed Forces attempted a provisional offensive in the eastern direction of the Armenia-Azerbaijan border," Armenia's defence ministry said in a statement.