Iran’s state media has published footage of a major incident in the Gulf of Oman, in which Tehran’s forces said they “foiled” the seizure of an oil tanker by the US as Washington looked to enforce its ban on Iranian oil exports.

On Wednesday, Iranian state media reported that units of the Islamic Revolutionary Guards Corps (IRGC) were forced to respond to an incident in the Gulf of Oman in which American forces attempted to seize the Vietnamese-flagged oil tanker Sothys. The government quickly confirmed the reports, noting that the events had taken place in late October. 

Footage released shortly after shows the moment Iranian forces reached the tanker. A helicopter is used to transport IRGC troops to the vessel, while Iran’s famed military speedboats can be seen attempting to block the path of US warships. 

On Wednesday, however, the US rejected Iran’s claims as “totally false and untrue.” American officials claim Iran seized the Vietnamese tanker last month and its warships were simply observing the situation. “The only seizing that was done was by Iran,” Pentagon Spokesman John Kirby told reporters.

Despite being dwarfed by the US vessels, the Iranian forces appear to successfully block the path of America’s warships as the tanker sails away. In multiple shots, IRGC soldiers can be seen training their weaponry at the American vessels.