KIEV (Reuters) - Fighting erupted between Ukrainian government forces and Russian-backed separatists in eastern Ukraine on Tuesday and four Ukrainian servicemen were killed, the regional administration chief said.
Gennady Moskal, governor of Luhansk region on the border with Russia, said on his Facebook page that separatists opened fire on government positions with mortar and artillery near the village of Katerinovka.
"According to preliminary data, four Ukrainian servicemen have been killed and two others have been wounded, one of them seriously," Moskal said.
The fatalities could not immediately be confirmed by the military in Kiev.
(Reporting by Natalia Zinets; Writing By Richard Balmforth; Editing by Robin Pomeroy)