Destroying 4 attacking tankers by hitting mines, stopping two other attacking ships and the MQ9's 56th UAV hunter. Islamic Revolutionary Guard Corps: Four oil tankers trying to cross the forbidden passage south of the Strait of Hormuz were destroyed by a sea mine and are still burning, and 2 more oil tankers were stopped. The air defense fighters of the Revolutionary Guards, during an innovative operation, shot down the 56th MQ9 UAV over the Strait of Hormuz today at 4:30.