A U.S. Army helicopter crew killed one guerrilla and wounded another during a rocket attack against an Army base north of Baghdad, the U.S. military said Saturday.

The two pilots of the OH-58D "Kiowa Warrior (search)" helicopter from the 4th Infantry division's, 10th Cavalry Regiment saw smoke trails from two rockets leading toward Logistical Support Area Anaconda (search) near Balad, 65 miles north of Baghdad on Friday.

The crew saw an guerrilla who tried to evade the helicopter as it approached. The pilots fired on the attacker, killing him, the military said in a statement.

A patrol sent to the site discovered the body of the first attacker and found another wounded guerrilla hiding in the bushes, the statement added. The soldiers also found three rocket tubes with an 80mm rocket still inside one of them.

A timed detonation device made of a clock and batteries was attached to the rocket, the statement added.