The fire broke out over the weekend during a party at the space, which was being used as a residential art collective. Officials are now attempting to retrieve and identify the remains of dozens of victims.
While their focus is on sorting through the rubble, The Bureau of Alcohol, Tobacco, Firearms and Explosives has begun their investigation. They believe a refrigerator sparked the fire and are confident that arson was not involved.
“We can see fire spread and ATF and our local investigators feel very strongly they have identified the section the building that is the point of origin,” Oakland Fire Department Battalion Chief Melinda Drayton told reporters.
The Alameda County District Attorney's office has launched a criminal investigation.