From The Guardian: Iran’s Revolutionary Guards have released audio of an exchange in which a UK warship is told not to intervene in the capture of a British-flagged tanker on 19 July. In the audio a patrol boat warning off a Royal Navy ship can be heard.
Iranian commandos seized the Stena Impero near the strait of Hormuz two weeks after British forces captured an Iranian tanker near Gibraltar over concerns it was defying EU sanctions by transporting oil to Syria.