US Navy seizes an Iranian-flagged ship near Strait of Hormuz; Tehran vows swift response

The United States attacked and seized an Iranian-flagged cargo ship it said had tried to evade a naval blockade near the Strait of Hormuz on Sunday, and Iran's joint military command vowed to respond, throwing a fragile ceasefire into question days before it expires.

- 

A tanker sits anchored in the Strait of Hormuz off the coast of Qeshm Island, Iran, Saturday, April 18, 2026.

((AP Photo/Asghar Besharati))

It was the first interception since the U.S. blockade of Iranian ports began last week. Iran's joint military command called the armed boarding an act of piracy and a ceasefire violation, the state broadcaster said.

With the U.S.-Iran standoff over the strait sharpening and the ceasefire expiring by Wednesday, it was not clear where President Donald Trump 's earlier announcement on new talks with Iran now stood. He had said U.S. negotiators would head to Pakistan on Monday.

The uncertainty sent oil prices rising again. One of the worst global energy crises in decades threatened to deepen.

Trump on social media said a U.S. Navy guided missile destroyer in the Gulf of Oman warned the Iranian-flagged ship, the Touska, to stop and then "stopped them right in their tracks by blowing a hole in the engine-room." U.S. Marines had custody of the U.S.-sanctioned vessel and were "seeing what's on board!"

It was not clear whether anyone was hurt. The U.S. Central Command, which didn't answer questions, said the destroyer had issued "repeated warnings over a six-hour period."

There was no comment from Iranian officials directly addressing Trump's announcement of talks. However, Iranian state media, without citing anyone beyond unnamed sources, issued brief reports suggesting that they would not happen.