Suicide bombers and gunmen attacked a police intelligence headquarters in the northern Iraqi city of Kirkuk on Wednesday, killing at least six people, Reuters reported.

Suicide bombers and gunmen attacked a police intelligence headquarters in the northern Iraqi city of Kirkuk on Wednesday, killing at least six people, Reuters reported.

Security forces and attackers engaged in a two-hour gun battle at the complex where explosions could be heard, police said.

Sabah Amir Ahmed, head of the health directorate in Kirkuk, said 47 people were wounded. No group immediately claimed responsibility for the attack.