Baghdad, Nov 20, SPA -- Insurgents attacked a police station Saturday in northwestern Baghdad with rocket-propelled grenades and small arms fire, witnesses said. Clashes broke out around dawn in the Azamiyah neighborhood, and three U.S. armored vehicles were seen in flames, witnesses said. The U.S. military had no immediate comment. "The Iraqi police is still in control; (but) we are fighting," said Khalid Hassan, police chief at the Azamiyah police station. Heavy fighting also broke out between gunmen and Iraqi National Guards and American troops in the western Amiriyah neighborhood, concentrated along the main thoroughfare, police said. Two roadside bombs also exploded, killing three National Guardsmen who had been fighting in the area, said policeman Akram al-Azzawi. National Guards ordered shop owners in the area to close their businesses. In the nearby Khadra area, two U.S. troops on patrol were injured when a roadside bomb exploded near their convoy, said Ali Hussein of the Khadra police station. The U.S. military had no immediate confirmation. On Friday, Iraqi forces, backed by U.S. soldiers, stormed one of the major Sunni Muslim mosques in Baghdad after prayers, opening fire and killing at least three people, witnesses said. --MORE1118 Local Time 0818 GMT www.spa.gov.sa/218275