President Donald Trump warned Iran on Tuesday not to retaliate against the latest US strikes, saying Tehran faced "much harder and higher" attacks if it hits back.
Trump said Tuesday's US attacks near the Strait of Hormuz were in response to Iran laying mines and shooting missiles at an American base in Jordan.
"If the failed Nation of Iran retaliates for this very justified attack, they will be hit again at a much harder and higher level, but it will not be the biggest attack of them all, that is waiting in the wings and, when it is over, there will be very little left of the Islamic Republic of Iran!" Trump said on his Truth Social network.
US forces launched strikes Tuesday against Iran's Revolutionary Guards in response to attempted attacks on commercial shipping and American forces, the US military said.
The strikes -- which began at 12:00 pm (1600 GMT) -- came after "recent attempted attacks by (the Guards) against commercial shipping in the Strait of Hormuz and against American service members deployed to the region," US Central Command said on X.
The Revolutionary Guards vowed to make the United States "regret" fresh attacks around the strait, despite Trump’s warning.
"Severe punishment awaits the aggressors; the United States will regret its new attacks," said Guards spokesman Hossein Mohebi in a post on X, after explosions were heard in multiple areas along and east of Hormuz.
After six months of war, the foes remain at an impasse, with Iran keeping the strategic Strait of Hormuz closed and the United States persisting with a counter-blockade of Iranian ports.
On Sunday, the United States carried out its first known strikes on Iran in several weeks, hitting an Iranian island in the Strait of Hormuz.
Tehran quickly retaliated by attacking US military targets in the Middle East.
Washington said its forces attacked Iranian rocket launchers on the island of Larak to prevent Tehran planting mines in the key shipping lane.
Iran responded with missile and drone attacks aimed at Jordan, saying they targeted US forces there.
Trump vowed at the time to "hit them hard," telling a Fox News reporter that "there will be a response."