Iranian commandos seized the Stena Impero earlier this month in the world’s most important waterway for oil shipments.
Iran’s Revolutionary Guards have released footage purportedly showing them warning off a British warship as they seized a British-flagged tanker near the Strait of Hormuz.
In the video, HMS Montrose is told “not to interfere” and “don’t put your life in danger”.
Iranian commandos seized the Stena Impero on 19 July in the world’s most important waterway for oil shipments.
It happened two weeks after British forces captured an Iranian oil tanker near Gibraltar.
Gibraltar said that vessel was suspected of smuggling oil to Syria in breach of European Union sanctions.