As flames tore through a Fall River assisted living residence Sunday night, nearly 50 firefighters rushed to rescue the vulnerable population calling for help from their windows. The fire killed nine residents and injured 30 at the Gabriel House Assisted Living Residence.

Local and state fire investigators are working to identify the origin and cause of the 5-alarm at Gabriel House on Oliver Street, officials said.

River firefighters arrived at the scene Sunday to find some of the trapped residents screaming for help out of the windows.