WASHINGTON: US President Donald Trump on Friday said he had ordered two nuclear submarines to be positioned in “the appropriate regions” in response to statements from former Russian President Dmitry Medvedev.

“Based on the highly provocative statements of the Former President of Russia, Dmitry Medvedev ... I have ordered two Nuclear Submarines to be positioned in the appropriate regions, just in case these foolish and inflammatory statements are more than just that,” Trump said in a social media post.

He added: “Words are very important, and can often lead to unintended consequences, I hope this will not be one of those instances.”

He did not specify what he meant by “nuclear submarines.” Submarines may be nuclear-powered, or armed with nuclear missiles.

It is extremely rare for the US military to discuss the deployment and location of US submarines given their sensitive mission in nuclear deterrence. The US Navy declined comment. The Pentagon did not immediately respond to a request for comment.