The Russian Emergencies Ministry said the tanker, Marine Alliance, was sailing to the Nakhodka port in the Russian Pacific when it broke down.
The 20 crew members on board were not injured, RIA Novosti said, and another Russian vessel was en route to tow the tanker to port.
The Marine Alliance suffered an earlier engine failure on Feb. 8 in the Sea of Japan in rough waters. In that instance, the crew was towed to shore by a Japanese salvage vessel, RIA Novosti said.
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