Iraq violence: Suicide attack on Kirkuk police HQ 03 Feb 2013 A suicide bomber and gunmen have attacked a police headquarters in the northern Iraqi city of Kirkuk. Unconfirmed reports say 30 people have been killed and 70 injured. A city official told AFP news agency that militants had tried to seize the compound but were unsuccessful. No group has said it carried out the attack. Kirkuk is ethnically mixed, and at the centre of a dispute between the Iraqi government and Kurds over oil and land rights.