The Islamic Revolutionary Guard Corps (IRGC) Navy announced early on Sunday morning that it had closed the Strait of Hormuz until further notice.

Shortly before that, the IRGC Navy reported that it had fired warning shots at a vessel that had allegedly attempted to pass through the strait along an unauthorised route.

According to Iranian state television, following the incident, it was decided to close the Strait of Hormuz until further notice and “until U.S. intervention in the region ceases.” Iranian officials also stressed that no ship would be allowed to pass through the strait, and warned that if the “enemy” used the incident as a pretext to launch new attacks against the Islamic Republic, it would face a “harsh response.”

The closure came hours after US Central Command (CENTCOM), the American military command responsible for the Middle East region, announced late on Saturday, in a post on social media platform X, that it had completed a third round of strikes this week against Iran, hitting approximately 140 Iranian military targets.

The targets included Iranian missile and drone facilities, naval capabilities, ammunition storage sites, communications networks, and coastal surveillance positions, CENTCOM added.

Meanwhile, Oman had proposed two separate shipping lanes through the strait during talks with Iran in Muscat, a proposal Tehran had already opposed.

However, the two sides agreed to continue technical and political talks on navigation in the region.