Ukrainian troops disembark from helicopters in Kramatorsk

KIEV (Reuters) - Ukrainian troops disembarked from at least two helicopters at an airfield on the outskirts of the eastern Ukrainian city of Kramatorsk on Tuesday, a Reuters witness said.

Earlier the defence ministry was quoted as saying it had launched a "special operation" against pro-Russia separatists who seized buildings in the town on Saturday.

(Reporting by Gabriela Baczynska; Writing by Conor Humphries; Editing by Richard Balmforth)