U.S. President Donald Trump said Wednesday that Iran "cannot have a Nuclear Weapon", a day after he signed an order reinstating a "maximum pressure" policy against Tehran over allegations that it was trying to develop such weapons.

"I want Iran to be a great and successful Country, but one that cannot have a Nuclear Weapon," he said in a post on his Truth Social platform, adding: "I would much prefer a Verified Nuclear Peace Agreement, which will let Iran peacefully grow and prosper."