Questions and finger-pointing have increased in the days since a fire at a Massachusetts assisted-living facility killed nine and hurt dozens.

When a loved one is no longer able to safely live alone due to illness or frailty, assisted living offers a supportive environment with round-the-clock oversight and access to care, as well as comprehensive safety measures. These communities must comply with federal, state and local safety regulations.

The investigation into the fire’s cause is ongoing but “does not appear to be suspicious,” according to the Bristol County district attorney's office.

Flames roared through an assisted-living facility in Massachusetts, killing nine people and trapping residents inside, including some who leaned out of windows and screamed for help.