OSLO, Dec 31 (Reuters) - BP's Valhall platform in theNorth Sea was being partially evacuated by helicopter onThursday after a barge broke its anchor and was drifting towardsthe installation following a storm, a company spokesman toldNorway's NRK Radio.
Production continued at the oilfield, the spokesman said.The Valhall field is operated by BP and is co-owned by Hess. (Reporting by Gwladys Fouche; Editing by Susan Fenton)