A car bomb killed at least seven people and injured 24 Saturday in a bustling commercial district, AP reported. The blast occurred at lunchtime outside an east Baghdad restaurant frequented by police, four of whom were among the injured, Sgt. Sabah Mohsen said. All the dead were civilians, police said. The explosion shattered windows and damaged shops in a wide area. Firefighters hosed down the debris-littered avenue as bystanders peered at vehicles_ charred and windowless _ that were damaged in the blast.