US going to have to give Iran's money back: Trump

President Donald Trump said Wednesday that the US has taken "a lot of" Iranian money and will have to give it back.

"We have taken a lot of their money, and we have their money," Trump said at a news conference in France as the G7 summit ended.

"It's not our money, it's their money, and we froze it at a certain point in time. I guess we're going to have to give it back, you know, if we didn't give it back, nobody would ever invest in the dollar again," he added.