The agency quoted Russian disaster officials as saying that the accident took place overnight as a result of a navigation error when the position of the vessel's anchor was being changed.
There are plans to pump the oil onto another ship.
THE FRAGILE PLANET: Since the collapse of the Soviet Union, old environmental disasters have come to light and new ones have emerged. War, poverty, and weak central-government control have led to serious environmental problems from Eastern Europe to the Russian Far East. RFE/RL has provided extensive coverage of these important issues and of efforts to cope with them.