The Latest: IS claims car bomb in Iraq, toll rises to 28

The Islamic State group has claimed a car bomb south of Baghdad that Iraqi officials now say killed at least 28 people, including 10 Iranian pilgrims.

Hospital and police officials say Thursday's parked car bomb, which wounded 35 others, exploded at a gas station near the city of Hilla.

The officials say the target of the attack appears to have been a bus carrying Iranian pilgrims heading home after taking part in a major Shiite holiday in the holy city of Karbala.

The officials say the target of the attack appears to have been a bus carrying Iranian pilgrims heading home after taking part in a major Shiite holiday in the holy city of Karbala.