FACTBOX: Security developments in Iraq, June 27

(Reuters) - Following are security developments in Iraq at 1700 GMT on Wednesday:

* denotes new or updated item.

* BAGHDAD - A car bomb killed seven people and wounded 14 in the Shi'ite district of Kadhimiya in Baghdad, police said.

* BAGHDAD - Police found the bodies of 21 people in Baghdad on Wednesday. Most had been shot.

KIRKUK - Four Iraqi policemen were killed in an ambush near the oil city of Kirkuk, 250 km (155 miles) north of Baghdad, when gunmen opened fire on their vehicles, police said.

BAGHDAD - The Iraqi army have killed four insurgents and detained 85 others during the last 24 hours in different districts of Baghdad, the Defence Ministry said.

MOSUL - Gunmen killed two members of the Assyrian's Beth-Nahrain Association Union in a drive-by shooting in central Mosul, 390 km (240 miles) north of Baghdad, police said.

BAGHDAD - A suicide car bomb targeting a police commando checkpoint killed one policeman and wounded three other officers in the al-Jaderiyia district of southern Baghdad, police said.

SAMARRA - A roadside bomb killed seven people, including five police commandoes in Samarra, 100 km (60 miles) north of Baghdad, police said, adding that two civilians were killed when security forces opened fire in the aftermath of the blast.

BAGHDAD - A car bomb killed at least three people in an attack on police vehicles near a busy market in northern Baghdad, a witness said. Police said there had been an explosion in the Suleikh district and 10 people were wounded.

SHIRQAT - Fourteen insurgents were killed when a truck they were rigging with explosives blew up overnight in the town of Shirqat, 310 km (190 miles) north of Baghdad, police said.

BAGHDAD - The bodies of 21 people were found in Baghdad on Tuesday. Most of victims were found in the western Karkh side of the Tigris river, police said.

ANBAR - A U.S. Marine was killed on Tuesday in combat in Anbar province, to the west of Baghdad, the U.S. military said on Wednesday. MOSUL - Five people were killed and three wounded in different attacks by gunmen on Tuesday in Mosul, police said.

MOSUL - An athletic club in Mosul was badly damaged when gunmen planted bombs inside the building overnight, police said.