Ukraine's Poroshenko vows 'to punish' Luhansk plane attackers
Ukraine's President Petro Poroshenko has vowed to retaliate after pro-Russia separatists shot down a military plane in the east, killing 49 people.
The defence ministry said the Ilyushin-76 transport plane came under anti-aircraft fire over the city of Luhansk.
Meanwhile, the Russian embassy in the capital, Kiev, has been attacked.
Daniel Sandford reports from Kiev.