FACTBOX - Security developments in Iraq, June 17

(Reuters) - Following are security developments in Iraq at 8 p.m. British time on Tuesday:

* denotes a new or updated item.

* BAGHDAD - A powerful car bomb exploded in a crowded market area of Baghdad, killing 51 people and wounding 75, police said.

* BAGHDAD - A civil servant was killed and another wounded when the car they were travelling in was attacked by armed men in the west Baghdad district of Mansour, police said.

* TUZ KHURMATO - A municipal worker was killed in a drive-by shooting in Tuz Khurmato, 170 km (105 miles) north of Baghdad, police said.

KUT - A roadside bomb killed a police colonel and his two guards and wounded four other policemen as they pursued gunmen in a car chase just outside the town of Kut, 150 km (95 miles) southeast of Baghdad, police said.

BAQUBA - A parked car bomb exploded outside police headquarters in central Baquba, 65 km (40 miles) northeast of Baghdad, killing a policeman and wounding 20 other people, including 10 policemen, police said.

MOSUL - Gunmen broke into a house and shot dead a woman, in Mosul, 390 km (240 miles) north of Baghdad, police said.

MOSUL - Gunmen shot dead an off-duty policeman near his house in central Mosul, police said.