President Trump said on Saturday that Iran will be "hit very hard" and predicted the regime will collapse unless they surrender.

Trump noted that Iran said it won't shoot at its neighbors any longer.

He made the comments in a post on Truth Social.

"Iran, which is being beat to HELL, has apologized and surrendered to its Middle East neighbors, and promised that it will not shoot at them anymore. This promise was only made because of the relentless U.S. and Israeli attack," he wrote.

"They were looking to take over and rule the Middle East. It is the first time that Iran has ever lost, in thousands of years, to surrounding Middle Eastern Countries. They have said, 'Thank you President Trump.' I have said, 'You’re welcome!'" he added.

Trump said there would be expanded attacks on Saturday.

"Iran is no longer the ‘Bully of the Middle East,’ they are, instead, ‘THE LOSER OF THE MIDDLE EAST’ and will be for many decades until they surrender or, more likely, completely collapse," he wrote. 

"Today Iran will be hit very hard! Under serious consideration for complete destruction and certain death, because of Iran’s bad behavior, are areas and groups of people that were not considered for targeting up until this moment in time," he added. 

Iran's president said on Saturday that Iran won't surrender.