KYIV, Feb 26 (Reuters) - Ukraine's state energy firm Naftogaz said on Saturday it had evacuated all staff from its Shebelinsky oil refinery located in the eastern Kharkiv region and suspended operations at the plant due to risk from hostilities.

The Kharkiv region bordering Russia became one of the hottest areas of fighting after Russia invaded Ukraine.

Underground gas storage facilities are working normally, Naftogaz said in a statement. (Reporting by Natalia Zinets Editing by Mark Potter)