The footage shows how representatives of the IRGC disembark on board a British ship from a helicopter, as well as approaching the tanker not with boats.
On July 19, representatives of the Islamic Revolutionary Guard Corps detained the Stena Impero tanker in the Strait of Hormuz and escorted him to the port of Bandar Abbas.
The crew consists of 23 people, among them three Russians.
Shortly after what happened, British Foreign Minister Jeremy Hunt said that if the situation with the detention of the tanker Stena Impero is not resolved soon, then Iran could face serious consequences.