NASHUA - Firefighters put out a small fire behind the bar at The Timber Grille Sunday night.

The fire was called in at 10:48 p.m. after alarms sounded inside the 57 Factory St. building and a passerby saw smoke inside it.

Firefighters found heavy smoke inside when they arrived and a small fire behind the bar which they extinguished. The fire was contained to that area although there was heavy smoke damage throughout.

The cause of the fire remains under investigation.