DUBAI, United Arab Emirates (AP) – U.S. President Donald Trump on Monday explicitly linked the actions of Yemen’s Houthi rebels to the group’s main benefactor, Iran, warning Tehran would “suffer the consequences” for further attacks by the group.

The comments by Mr. Trump on his Truth Social website escalate his administration’s new campaign of airstrikes targeting the rebels, which killed at least 53 people this weekend alone. U.S. officials said the strikes were carried out against more than 40 targets and more airstrikes were planned in the coming days. The officials spoke on condition of anonymity to discuss details of military operations.

“We’re not going to have these people controlling which ships can go through and which ones cannot. And so your question is, how long will this go on? It will go on until they no longer have the capability to do that,” U.S. Secretary of State Marco Rubio told CBS on Sunday.

Mr. Rubio said that over the past 18 months the Houthis had attacked the U.S. Navy “directly” 174 times and targeted commercial shipping 145 times using “guided precision anti-ship weaponry.”

Meanwhile, the Iranians continue to weigh how to respond to a letter Mr. Trump sent them last week trying to jump-start negotiations over Tehran’s rapidly advancing nuclear program.

Houthi supporters rallied in several cities Monday after the strikes, vowing revenge against America and Israel over blocking aid to the Gaza Strip after its war on Hamas there. The Houthis’ al-Masirah satellite news channel put young boys on air live, who chanted the group’s slogan: “God is the greatest; death to America; death to Israel; curse the Jews; victory to Islam.”

“The Yemeni position is an irreversible position [regarding Gaza], so do whatever you [Americans] want, for we are men who fear no one but God,” said Mohammed Ali al-Houthi, a Houthi leader who spoke to the demonstration in Yemen’s rebel-held capital, Sanaa.

The United Nations called for a halt to all military activities in Yemen and the Red Sea, urging “utmost restraint” and warning that “any additional escalation could exacerbate regional tensions,” UN deputy spokesman Farhan Haq said Monday.

President Links Iran to the Houthis

Describing the Houthis as “sinister mobsters and thugs,” Mr. Trump warned any attack by the group would be met with “great force, and there is no guarantee that that force will stop there.”

“Iran has played ‘the innocent victim’ of rogue terrorists from which they’ve lost control, but they haven’t lost control,” Mr. Trump said in his post. “They’re dictating every move, giving them the weapons, supplying them with money and highly sophisticated Military equipment, and even, so-called, ‘Intelligence.’”

The strikes targeted headquarters positions and drone sites where what the Pentagon identified as “key leaders” for the Houthis’ drone program were located at the time, said Lt. Gen. Alex Grynkewich, director of operations for the Joint Chiefs of Staff.

The Pentagon said there was no evidence that any civilians were killed in the attacks.

The head of Iran’s paramilitary Revolutionary Guard sought to separate the Houthis’ actions from those of Tehran this weekend. The Houthis also launched drones and missiles targeting the USS Harry S. Truman aircraft carrier in the Red Sea, though none reached the ship as it continues flight operations in the region.

Iran did not immediately comment on the post.

“Every shot fired by the Houthis will be looked upon, from this point forward, as being a shot fired from the weapons and leadership of IRAN, and IRAN will be held responsible, and suffer the consequences, and those consequences will be dire!” Mr. Trump added.

The Houthi rebels attacked over 100 merchant vessels with missiles and drones, sinking two vessels and killing four sailors, from November 2023 until January this year when a ceasefire began in Gaza. The campaign also greatly raised the Houthis’ profile in the wider Arab world and tamped down on public criticism against their human rights abuses and crackdowns on dissent and aid workers.