The cause of the schooner's sinking was not immediately known and it occurred just off Kunashir Island, emergency official Alexandra Vasichkina said. She said 12 members of the vessel's crew were rescued, one was found dead and another remained missing, reports AP.
A search effort for the missing crewman was under way, Vasichkina said.
Russia has developed an unmanned submarine capable of carrying a powerful nuclear munition. Two years ago, the Americans could not even think Russia could do it
The head of the Russian Finance Ministry, Anton Siluanov, said that the Americans would suffer additional losses if they impose sanctions on Russia's public debt