Iran said four of the security personnel killed in U.S. and Saudi attacks Wednesday in Iraq were members of Iran's Islamic Revolutionary Guard Corps. The U.S. and Saudi Arabia launched the attacks during a major Shia religious commemoration which culminates next Wednesday. Prime Minister Zaidi appeared to have canceled a planned trip to Saudi Arabia after the attacks. Iraq's Shia-led governments who took power after the toppling of Saddam Hussein have spent years trying to repair relations with Saudi Arabia and other Sunni Gulf states. Iran also said it allowed a Qatari tanker to pass through the channel after Qatar coordinated with Iran.