Iran dismissed Donald Trump’s threat to declare the Strait of Hormuz a territory of the United States after the war.

In a post on Twitter, Kazem Gharibabadi, Iran’s Deputy Foreign Minister for Legal and International Affairs, said the key waterway “cannot be seized with a tweet”

“Trump has said that after Iran’s defeat, he will soon declare the Strait of Hormuz as U.S. territory! The Strait of Hormuz cannot be seized by tweet, nor by aircraft carrier, nor by issuing an order, nor by an election speech. Iran neither fears threats nor cowers before displays of power,” Gharibabadi wrote.

“Once and for all, accept the reality: up to this point, you have suffered strategic and heavy defeats; the Strait of Hormuz has been Iranian, is Iranian, and will remain Iranian; this strait will only be closed and opened under Iran’s command, and as long as you do not accept the reality of defeat and cease your fanciful delusions, Iran will continue to enforce the blockade,” he continued.

Trump has floated the possibility that the U.S. could impose tolls in the strait once the war ends, though he later dropped the idea after pushback. The strait was an open international waterway before the U.S. and Israel started the war on Feb. 28 by launching strikes against Iran.

Since then, Trump has claimed the U.S. has complete control over the strait and that the U.S. is negotiating with Iran to reopen the strait.

Iran’s foreign minister Abbas Araghchi has said there are no negotiations with the U.S.

As the conflict drags on, gas prices have skyrocketed. Trump said on Friday that he would “never apologize” for the higher gas prices Americans have paid since the beginning of the Iran War.

“So for you to pay a tiny little bit more for your gasoline, just remember you’re doing it so that a very evil country cannot have a nuclear weapon, a country that really is the number one state sponsor of terror in the world,” Trump added at a rally in New York on Friday.

“We don’t want to have them have a nuclear weapon. So remember that, when you have to pay a little bit more, you’re at four dollars,” he said.

The average price of a gallon of gas across the U.S. was $4.07 on Saturday, according to the American Automobile Association