BATON ROUGE- Authorities are looking for the person responsible for setting a house on fire early Monday morning.

Firefighters say they responded to a call about a house on fire in the 2200 block of Thomas H. Delpit Drive. Firefighters weren't able to contain the blaze before it spread to the house next door.  

It took firefighters about 30 minutes to get the fires under control. The first house that caught on fire suffered serious fire damage and was considered a total loss. The second fire suffered heavy smoke damage. Red Cross is assisting three people who lived in the house.

Both houses were unoccupied at the time of the fire. After an initial investigation, the fire was determined to be the result of arson.

Officials are asking anyone with information on the fire to call BRFD Arson Investigators at 225-354-1419.