ERBIL—A rocket attack at a U.S.-led Coalition military base in Kurdish northern Iraq on Monday killed a civilian contractor and wounded five other people including a U.S. service member, according to initial reports, the U.S. coalition in Iraq said. It was the most deadly attack to hit U.S.-led forces for almost a year in Iraq, where tensions have escalated between Iraqi and Kurdish allies of Coalition forces on one side and Iran-aligned militias on the other. A coalition spokesman said on Twitter the attack hit coalition forces in the Kurdish regional capital of Erbil, and that more details would follow. Kurdish security sources said at least three rockets landed near Erbil International Airport in the autonomous region late at night. Reuters reporters heard several loud explosions and saw a fire break out near the airport. U.S. troops occupy a military base adjacent to the civilian airport. A statement from the …