Iranian boats tried to impede a British oil tanker near the Gulf - before being driven off by a Royal Navy ship, a UK government spokesman has said, APA reports citing BBC.
HMS Montrose positioned itself between the three boats and the tanker British Heritage before issuing verbal warnings to the Iranian vessels, he said.
He described the Iranians' actions as "contrary to international law".
Iran has been threatening to retaliate for the seizure of one of its tankers near Gibraltar last week.
According to reports in US media, quoting US officials, boats believed to belong to the Iranian Revolutionary Guard Corps approached the British Heritage tanker as it was moving out of the Gulf into the Strait of Hormuz.