Nine people were killed and one was critically injured in an assisted living home fire in Fall River, Massachusetts, authorities said. Fall River Fire Chief Jeffrey Bacon called the fire at Gabriel House "an unfathomable tragedy.

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.

Shirley Chambra was outside smoking a cigarette when she saw sparks and then flames at her home: the Gabriel House assisted-living facility in Fall River, Massachusetts, according to her nephew, Ken Pelletier.