Britain denounced the Iranian seizure of a British-flagged oil tanker in the Gulf as a “hostile act” on Saturday.
Reuters reports the UK rejects Tehran’s explanation that it had seized the vessel because it had been involved in an accident.
Iran’s Revolutionary Guards posted a video online showing speedboats pulling up alongside the Stena Impero tanker.
The vessel had been heading to a Saudi Arabia, then changed course after passing through the Strait of Hormuz.