US President Donald Trump on Sunday threatened consequences for Iran if its leaders do not act quickly.

"For Iran, the Clock is Ticking, and they better get moving, FAST, or there won’t be anything left of them. TIME IS OF THE ESSENCE!," he wrote in a Truth Social post.

Meanwhile, Trump is expected to hold a Situation Room meeting on Tuesday with his top national security advisers to discuss the options for military action regarding Iran, Axios reported on Sunday, citing two U.S. officials.