SAN FRANCISCO (AP) _ Coroner's investigators found more human remains Monday in the charred rubble of an industrial complex that was leveled in an explosion and fire that killed at least eight people, authorities said.

''Parts of a body were found, and the medical examiner is making a determination now on whether they are from a new victim or from a victim already identified,'' said investigator David LeNoue.

Fire investigators said an illegal explosives factory was the principal cause of the April 4 blast that demolished the square-block Bay View Industrial Park and caused $10 million in damage.