Bomb attacks in Iraq kill eight, injure 70

Three bomb attacks in a northern Iraqi city have killed eight civilians and injured 70 others. (AAP)

Three bomb attacks in a northern Iraqi city have killed eight civilians and injured 70 others. (AAP)

Three separate bomb attacks against Shi'ite mosques in a volatile northern Iraqi city have killed eight civilians and injured 70 others.

Three separate bomb attacks against Shi'ite mosques in a volatile northern Iraqi city have killed eight civilians and injured 70 others.

Kirkuk police commander Brigadier General Sarhad Qadir said Friday's blasts took place as worshipers were leaving mosques.

Qadir said the deadliest attack occurred when a parked car bomb went off in Kirkuk's southern Domiz area. A second bomb exploded after police and rescuers rushed to the scene. Both bombs killed a total of eight and wounded 36.

Three other bombs targeted two more mosques in the centre of the city, causing 34 injuries but no fatalities.

As in other Muslim countries, Friday sermons draw crowds of worshippers in Iraq.

Kirkuk, 290km north of Baghdad, is home to a combustible mix of Kurds, Sunni Arabs and Turkomen who all claim rights to the city and the oil-rich lands around it.