The Latest on the campaign to retake the Iraqi city of Mosul from the Islamic State group (all times local):
Islamic State militants have unleashed at least four suicide car bombs against Iraqi special forces as they advanced on the militant-held town of Bartella east of Mosul.
One of the car bombs exploded after being shot by a tank. It was not immediately clear if anyone was killed or wounded in the attacks.
Iraqi special forces charged into battle early Thursday, joining a massive operation to retake the IS-held city of Mosul.