Oct 17 (Reuters) - Following are security developments in Iraq at 1330 GMT on Wednesday. * denotes new or updated items * BAGHDAD - One U.S. soldier was killed by small arms fire while conducting a raid south of Baghdad on Sunday, the U.S. military said. * BAGHDAD - U.S. forces captured 15 gunmen during operations targeting al Qaeda networks in central and northern Iraq, the U.S. military said. * DIWANIYA - Police detained two members of Qadisiya's provincial council on suspicion of kidnapping and murder, police said. The two are aligned to Shi'ite cleric Moqtada al-Sadr, they said. JALAWLA - A suicide truck bomber hit a Peshmerga checkpoint in Jalawla, 120 km (75 miles) northeast of Baghdad, killing one member of the Kurdish forces and wounding 10, police said. DIWANIYA - Seven policemen were killed when their vehicle was hit by a powerful roadside bomb east of Diwaniya, 180 km (110 miles) south of Baghdad, police said. RIYADH - The body of a policeman was found with gunshot wounds and signs of torture in the town of Riyadh, 60 km (40 miles) southwest of Kirkuk, police said. BAIJI - Police killed three gunmen and arrested six others in Baiji, 180 km (112 miles) north of Baghdad, police said. SAMARRA - Clashes erupted between al Qaeda and the Islamic Army, a Sunni Arab armed group, in Samarra, 100 km (62 miles) north of Baghdad, in which four Islamic Army fighters were killed, police said. BAGHDAD - The Iraqi army killed five gunmen and arrested 14 others during the last 24 hours in different parts of Iraq, the Defence Ministry said.