Nov 20 (Reuters) - Following are security developments in Iraq at 1730 GMT on Tuesday. * denotes new or updated item. BAGHDAD - A car bomb killed one person and wounded six in the Bayaa district of southwestern Baghdad, police said. Another police source said two people had been killed. BAGHDAD - A roadside bomb wounded three people in the Baladiyat district of eastern Baghdad, police said. BAGHDAD - U.S. forces killed 12 suspected insurgents, detained five others and found two shackled bodies in a makeshift detention facility during operations against al Qaeda along the Tigris River valley on Sunday and Monday, the U.S. military said. * BAGHDAD - Six bodies were found in different areas of Baghdad, police said. * BAGHDAD - Two rockets or mortars were fired at the heavily fortified Green Zone in Baghdad, where the U.S. embassy and Iraqi government headquarters are located, police said. The U.S. military could not immediately confirm the report. HADITHA - Three al Qaeda fighters and one policeman were killed in gunbattles in the town of Haditha, 250 km (155 miles) northwest of Baghdad, police said. Five militants were detained in the clashes. BAGHDAD - A roadside bomb targeting a U.S. military convoy wounded three civilians in the Baladiyat district of eastern Baghdad, police said. BAGHDAD - Iraqi army soldiers killed two suspected insurgents and arrested 154 in different areas of Iraq during the past 24 hours, the Defence Ministry said. SUWAYRA - Police found the bodies of four men in the Tigris river near the town of Suwayra, 60 km (40 miles) south of Baghdad, on Monday, police said. All four had been tortured and shot. DHULUIYA - Police found the bodies of three men shot and bound in the town of Dhuluiya, 70 km (45 miles) north of Baghdad, the Joint Iraqi-U.S. Coordination Centre said. SAMARRA - The bodies of four Iraqi soldiers who had been tortured and shot in the head were received by a hospital in the city of Samarra, 100 km (60 miles) north of Baghdad, on Monday, the Joint Iraqi-U.S. Coordination Centre said. NEAR SAMARRA - The body of police major Saad Jumaa was found near Samarra after he was kidnapped on Monday, the Joint Iraqi-U.S. Coordination Centre said. BAGHDAD - Two men were shot and wounded by a 15 year-old boy in Mansour district in western Baghdad, an official at Yarmouk hospital said. ISKANDARIYA - Police discovered a weapons cache in a Shi'ite mosque in the town of Iskandariya, 40 km (25 miles) south of Baghdad, on Monday, police said. (Editing by Dean Yates)