Following are security developments in Iraq as of 5 a.m. ET on Thursday.
* Indicates a new or updated item.
* MOSUL - Gunmen shot dead a son of a prominent Sunni tribal leader in front of his house in western Mosul, 390 km (240 miles) north of Baghdad, police said.
* KIRKUK - A parked three-wheeled motorbike blew up, killing three people and wounding six others, in central Kirkuk, 250 km (155 miles) north of Baghdad, police and hospital sources said.
MUSSAYAB - A policeman and nine relatives were killed as they slept when militants bombed their house in Mussayab, about 60 km (40 miles) south of Baghdad, police sources said.
KIRKUK - A sticky bomb attached to a civilian's car blew up, killing him and a passenger late on Wednesday in southern Kirkuk, police said.
KIRKUK - Gunmen in a speeding car, using silenced weapons, shot dead two off-duty policemen in front of their house late on Wednesday in southeastern Kirkuk, police said.
(Compiled by Baghdad bureau)