Four Ukrainian servicemen killed in new fighting - military source

A pro-Russian separatist guards a road checkpoint outside the town of Lysychansk in the Luhansk region of eastern Ukraine, June 24, 2014. REUTERS/Shamil Zhumatov

KIEV (Reuters) - Four Ukrainian servicemen were killed and five wounded in an overnight attack by separatist fighters on a military post in the east of the country, a military analyst said on Friday.

Dmytro Tymchuk, who has good sources among government forces, said the rebels, backed by eight Russian tanks and firing mortar bombs, stormed a military base near Kramatorsk in one of several rebel attacks overnight.