Iran's supreme leader has challenged U.S. President Donald Trump over America pulling out of the nuclear deal, saying: "You cannot do a damn thing!"

Ayatollah Ali Khamenei's comments came Wednesday as he met with a group of school teachers in Tehran, a day after Trump announced he was renewing sanctions on Iran.

Khamenei described Trump's speech Tuesday night as having "over 10 lies," without elaborating. He also said Trump's remarks threatened Iran's people and its theocratic government.

Under Iran's Islamic Republic, Khamenei has final say on all state matters.