FACTBOX-Security developments in Iraq, June 23

(Reuters) - Following are security developments in Iraq at 3:30 p.m. British time on Saturday:

HILLA - A car bomb killed two people and wounded 18 in the Shi'ite city of Hilla, south of Baghdad, police said.

BAGHDAD - Four U.S. soldiers were killed and an Iraqi interpreter wounded when a roadside bomb exploded near their vehicle northwest of Baghdad, the U.S. military said.

BAGHDAD - A U.S. airman died when his vehicle was hit by a roadside bomb in Tikrit, 175 km north of Baghdad, the military said.

BAGHDAD - Iraqi troops killed five militants spotted placing a roadside bomb near a bridge in the al-Khatoon district of Baquba on Wednesday, the U.S. military said. BAGHDAD - Two U.S. soldiers were killed and three wounded when their unit was hit by a roadside bomb and then came under small arms fire in eastern Baghdad, the U.S. military said.

KHALIS - U.S. and Iraqi forces killed 11 al Qaeda gunmen after an attack on an Iraqi army checkpoint near Khalis, 80 km north of Baghdad, on Wednesday, the U.S. military said. Attack helicopters were called in after the gunmen fired on the checkpoint.

BAGHDAD - Iraqi special forces detained a key Mehdi Army leader during an early-morning raid in Baghdad's Sadr City district on Friday, the U.S. military said. SAMARRA - Three police commandos and one gunman were killed in clashes in Samarra, 100 km north of Baghdad, police said.

BAGHDAD - Three people were killed and two wounded in a mortar attack in the Bayaa district of south-western Baghdad, police said.

MUSSAYAB - A roadside bomb targeting a police patrol killed one policeman and wounded two others in Mussayab, about 60 km south of Baghdad, police said.

ISKANDARIYA - A roadside bomb killed one policeman and wounded two others when it exploded near a police convoy in Iskandariya, 40 km south of Baghdad, police said.

TIKRIT - U.S. soldiers conducting raids against al Qaeda killed two men in a car which ignored orders to stop on a road near Tikrit, the U.S. military said. A bomb was found in the car, which was then destroyed by a U.S. air strike.

FALLUJA - A U.S. air strike killed five gunmen who had opened fire on a patrol near Falluja, 50 km west of Baghdad, the U.S. military said.

BAGHDAD - Police found 11 bodies on the streets of Baghdad on Friday.

NAJAF - Gunmen killed a police officer and wounded two of his bodyguards on the road between Najaf and the nearby town of Kufa on Friday. Najaf is 160 km south of Baghdad.

FALLUJA - Gunmen killed Ahmed Jasim, deputy chairman of the sports committee in the local council of Falluja, on Friday, police said.

KIRKUK - Police said they found a body on Friday showing signs of torture in Kirkuk, 250 km north of Baghdad.