"This is a clear escalation of the conflict and a violation of international law. We condemn the attack and call for a ceasefire and a return to diplomatic…
"The situation in Crimea is a grave concern for the international community, and we urge all parties to exercise restraint and work towards a peaceful…
"The attack on St Petersburg is a clear indication that the conflict is escalating and that Ukraine is willing to take bold action to defend its interests."



