Gibraltar defence police officers guard the Iranian oil tanker Grace 1 as it sits anchored after it was seized earlier this month by British Royal Marines off the coast of the British Mediterranean territory on suspicion of violating sanctions against Syria, in the Strait of Gibraltar. REUTERS/Jon Nazca
Gibraltar defence police officers guard the Iranian oil tanker Grace 1 as it sits anchored after it was seized earlier this month by British Royal Marines off the coast of the British Mediterranean teShow more

Gibraltar denies Iran's claims it is releasing seized tanker Grace 1 as deadline looms