Suicide bomber kills 10 people, injures 22 others in northern Iraq

The toll is preliminary and is likely to rise, police said, adding that the attack appeared to have targeted a convoy of police assigned to protect Iraq's northern oil infrastructure.

The attack is the latest in a series of blasts in northern Iraq, where al Qaeda and other insurgents have resisted crackdowns by U.S. and Iraqi forces even as violence has fallen elsewhere in the country.

In the northern Iraqi city of Mosul on Friday, a truck bomb was the deadliest attack for U.S. forces in over a year.

Photos are archive images.