The Warren Fire Department spent Monday morning working to put out a fire at a home in the 100 block of Oak Knoll Avenue NE.

Fire crews arrived on scene to find heavy fire coming from the second floor.

Firefighters were able to extinguish the fire while searching the building for anyone that may have been inside.

They were able to get the blaze under control in about 30 minutes.

No firefighters were injured.

The cause of the fire is being investigated by the State Fire Marshal.