Ukraine admits missile may have shot down plane

Ukraine's chief of air defences has admitted that the Russian airliner which crashed in the Black Sea, killing all on board, might have been unintentionally shot down by a missile fired by Ukrainian forces during military exercises.

"On the basis of the preliminary conclusions of the experts, the cause of the air crash could have been the unintended destruction of the plane by a missile during exercises,'' General Volodymyr Tkachov told a news conference.