New Delhi, Oct. 31 -- US President Donald Trump on Friday hinted at resuming underground nuclear tests, but did not provide a confirmation on whether the United States would actually start doing it.

"You'll find out very soon," the US President told reporters aboard his Air Force One.

Responding to a question from news agency AFP, Trump said that the US would resume nuclear testing if other countries do so, but maintained ambiguity over the type of test he was referring to.

"We're going to do some testing, yeah, and other countries do it. If they're going to do it, we're going to do it," he said during his journey to Palm Beach, Florida.

Donald Trump on Thursday instructed the US Department of War to start testing US nuclear weapons o...