River Fire Chief Jeffrey Bacon deferred all questions about the fire investigation to the Massachusetts Department of Fire Services.

River will hire up to 20 more firefighters and offer more overtime to increase the number of crew members working each shift following this week's deadly fire at an assisted living facility.

You could have had 100 firefighters show up on that scene and it wouldn’t have been enough,” the fire chief said at a news briefing outside the fire department’s headquarters Tuesday.