BATON ROUGE, La (NBC33) - — Baton Rouge firefighters are trying to figure out what sparked a house fire tonight.

It happened on the 13-hundred block of Dot Street near Carr Alley. The fire was mainly contained to the back of the house.

A granddaughter of the woman who owns the home says she thinks the fire is suspicious because the house has caught fire before.

Witnesses say nobody was hurt during the fire.