Iran warns against any action over tanker By AFP - Aug 02,2021 - Last updated at Aug 02,2021 Iran said on Sunday it was not involved in an attack on an Israeli-managed petroleum product tanker off the coast of Oman (AFP photo) TEHRAN — Iran vowed on Monday to respond to any "adventurism", its foreign ministry said, after the US and Britain joined Israel in blaming it for a deadly tanker attack, claims Tehran denies. The MT Mercer Street, managed by prominent Israeli billionaire Eyal Ofer, was attacked on Thursday off Oman. A British security guard and a Romanian crew member were killed in what the United States, Britain and the vessel's operator Zodiac Maritime said appeared to be a drone strike.