Mirages dove on the ship and attacked with 30-mm cannons and rockets. The attack came a few minutes after the crew completed a chemical attack drill, with Captain McGonagle on the command bridge. The crew was in "stand-down mode", with their helmets and life jackets removed. Battle readiness "modified condition three" was set, which meant that the ship's four .50 caliber machine guns were manned and ammunition was ready for loading and firing. Eight crewmen either were killed immediately or received fatal injuries and died later, and 75 were wounded. Among the wounded was McGonagle, who was hit in the right thigh and arm. During the attack, antennas were severed, gas drums caught fire, and the ship's flag was knocked down. McGonagle sent an urgent request for help to the Sixth Fleet, "Under attack by unidentified jet aircraft, require immediate assistance". The Mirages left after expending their ammunition, and were replaced by a flight of two Dassault Super Mystères codenamed Royal flight. The Mysteres were armed with napalm bombs, and were flown by Captain Yossi Zuk and his wingman, Yaakov Hamermish. The Mysteres released their payloads over the ship and strafed it with their cannons. Much of the ship's superstructure caught fire. The Mysteres were readying to attack again when the Israeli Navy, alerted by the absence of return fire, warned Kislev that the target could be Israeli. Kislev told the pilots not to attack if there was any doubt about identification, and the Israeli Navy quickly contacted all of its vessels in the area. The Israeli Navy found that none of its vessels were under fire, and the aircraft were cleared to attack. However, Kislev was still disturbed by a lack of return fire and requested one last attempt to identify the ship. Captain Zuk made an attempt at identification while strafing the ship. He reported seeing no flag, but saw the ship's GTR-5 marking. Kislev immediately ordered the attack stopped. Kislev guessed that the ship was American. The fact that the ship had Latin alphabet markings led Chief of Staff Rabin to fear that the ship was Soviet. Though Egyptian warships were known to disguise their identities with Western markings, they usually displayed Arabic letters and numbers only. Rabin ordered the torpedo boats to remain at a safe distance from the ship, and sent in two Aérospatiale SA 321 Super Frelon helicopters to search for survivors. These radio