The U.S. military says an American soldier was killed in Iraq's restive al-Anbar province, as U.S. and Iraqi forces continued their offensive to hunt down insurgents in western Iraq.

The military says the soldier was killed late Friday during security operations in Anbar. No other details were given.

U.S. Marines swept through the Iraqi town of Haditha in Anbar province early Saturday. A Reuters report says soldiers destroyed a cache of weapons and briefly exchanged fire with guerrillas.

Insurgents also continued assaults on Iraq's strategic infrastructure, blowing up a section of an oil pipeline in the oil-rich northern region of Kirkuk late Friday.

Some information for this report provided by AP, AFP and Reuters.