WASHINGTON, Jan. 22 (Xinhua) -- U.S. President Donald Trump said Thursday that the United States has a "massive" naval force heading toward Iran, while suggesting it may not be used as tensions remain high amid Iran's unrest.

"We have a lot of ships going that direction just in case. We have a big flotilla going in that direction. And we'll see what happens," Trump told reporters on Air Force One as he returned from the World Economic Forum in Davos, Switzerland.

"We have an armada. We have a massive fleet heading in that direction, and maybe we won't have to use it. We'll see," Trump added. ■