There was no immediate claim of responsibility, though suicide car bombings are a favorite tactic of Sunni militant groups such as al-Qaida.
Violence has ebbed in Iraq, but insurgent attacks, often aimed at undermining the stability of the Shiite-led government, are still frequent.
MORE: http://abcnews.go.com/International/wireStory/wave-bombings-kills-17-people-iraq-17713779
