On Monday, a Russian submarine caught fire during a mission, killing 14 sailors on board.
But the public didn’t find out about the incident until the next day, when Russia finally released a statement about the accident — though two days after the event, the nation still wouldn’t say exactly what kind of sub caught fire or whether it was nuclear-powered.
A possible reason for Russia’s caginess? Multiple sources are now claiming the sub was an AS-12 “Losharik,” a nuclear-powered submarine some speculate was designed to cut the undersea cables that deliver internet to the world.
Russian media outlets RBC and Novaya Gazeta have both cited anonymous sources who claim the submarine was a Losharik, and while the sub has been in operation since 2003, Russia has never come out and declared its official purpose.
That hasn’t stopped the U.S. and other Western officials from conjecturing about it, though.