Investigators may never know for certain what sparked the fire on the left side of the U-shaped assisted living facility.

The deadly fire at an assisted-living facility in Fall River, Massachusetts, was accidental, but the cause is classified as undetermined.

The cause of a fire at a Massachusetts assisted-living facility that left 10 people dead remains undetermined for now as officials investigate whether smoking materials and an issue with a medical oxygen machine may have been factors,

The deadly blaze that broke out at an assisted living facility in Massachusetts earlier this month was sparked accidentally by either a malfunctioning oxygen machine or, possibly, a resident smoking,

Investigators reveal 2 possible causes of deadly fire at Fall River assisted-living home Investigators on Tuesday revealed new evidence linked to a raging fire that tore through an assisted-living facility in Fall River earlier this month, killing 10 people and leaving dozens of others hospitalized.

A survivor of the deadly fire at the Gabriel House assisted living home in Fall, River Massachusetts is now suing the owner.

The state’s deadliest blaze in more than four decades has highlighted the lack of regulations governing assisted-living facilities that often care for low-income or disabled residents.

All 273 assisted living facilities in Massachusetts will be required to send a letter to all residents and families detailing fire safety protocols.