More than 150 residents of the Rehabilitation Center at Hollywood Hills were evacuated to hospitals Wednesday. Three people were already dead when first responders arrived, and five more died that afternoon. Gov. Rick Scott called the deaths “unfathomable,” and state and local authorities have started a criminal investigation.

The nursing home’s administrator, Jorge Carballo, said in a statement that the facility was “cooperating fully with relevant authorities to investigate the circumstances that led to this unfortunate and tragic outcome.”