Calls to 911 reporting a fire at an assisted-living facility in Fall River, Massachusetts, began coming in shortly after 9:30 p.m. Sunday, marking the start of a prolonged emergency response to rescue the roughly 70 people who lived there,

Nine people were killed and at least 30 were hospitalized after a fire ripped through an assisted living facility in Fall River Sunday night, the city’s fire chief said.

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.