After Russia's "Skyfall" missile test, Trump says the U.S. has a nuclear submarine "right off their shores"

President Donald Trump said on Monday that the US has a nuclear submarine parked somewhere near Russia after Moscow touted the successful test of a new nuclear-powered cruise missile with an unlimited range.

"They know we have a nuclear submarine — the greatest in the world — right off their shores," Trump told reporters on Air Force One during his ongoing trip to Asia, highlighting the stealthy American boat as a flexible strike option that can hit any target. "It doesn't have to go 8,000 miles," he said.

Trump added that Russia is "not playing games with us. We're not playing games with them either. We test missiles all the time."

Russian Chief of the General Staff Valery Gerasimov said on Sunday that Moscow conducted a test last week of its nuclear-powered Burevestnik cruise missile, which traveled 14,000 kilometers (8,700 miles).

Gerasimov said at a meeting with Russian President Vladimir Putin that the missile spent 15 hours in the air, but it is said to be capable of flying for longer. He said the Burevestnik missile is capable of bypassing air defense systems, according to state media outlet Tass, which described the weapon as having "unlimited flight range."

The 9M730 Burevestnik, which NATO identifies as the SSC-X-9 Skyfall, is an experimental nuclear-capable cruise missile. It was one of six "super weapons" unveiled by Putin in 2018 and is powered by a mini nuclear reactor, which, in theory, would give it an unlimited range.