Baghdad - Two people were killed, including an Iraqi soldier, while 16 were injured when a suicide attacker detonated himself in a car west of Mosul, a police source said Wednesday. The blast struck a joint police-army checkpoint, killing a civilian and an Iraqi soldier.
Among the 16 casualties were six security men, a source who spoke on condition of anonymity told Voices of Iraq (VOI) news agency.
The charred body parts of the suicide bomber had been found, the source added, without giving further information.
Earlier in the day, an explosion took place south of Mosul.
A car bomb was detonated at the side of the road, killing one civilian and injuring another seven, an anonymous source told VOI.
Mosul is located some 400 kilometres north of Baghdad. The city is the centre of US and Iraqi military crackdowns on insurgents.
In Kirkuk, the mayor of Multaqa district, who is also a tribal police leader, escaped an assassination attempt when a car bomb went off targeting his motorcade, a police source told Deutsche Presse- Agentur dpa.
Abdel Karim Nasief and three of his guards were injured in the blast.
Tribal police, also known as "Awakening Councils," are US-backed Sunni units formed to fight militants from the al-Qaeda terrorist network in Iraq.
Tribal leaders, who were tired of al-Qaeda's indiscriminate killings and austere version of Islam, collaborated with the US military to fight the terrorist organization.
Separately, a statement from the US military said that US Army headquarters in Kazimiyah to the north of Baghdad had been attacked.
The nature of the attack and the number of casualties were not known, spokesman Abdel-Latif Rayan told VOI.