NILES, Ohio - The Ohio Fire Marshal has been called out to help find the cause of an early morning fire at a Niles bar.

Firefighters were called to the Dragon's Den Bar and Grille on Robbins Avenue just west of Route 422 after 3 a.m. Friday.

The first firefighter on the scene reported black smoke coming from the building.  It was later reported that flames had reached the roof.

Robbins Avenue was shut down in the area for a time so crews could stretch a fire hose across the road.

Fire Chief John Stevens tells 21 News that most of the fire was between the building's flat roof and pitched roof, making it difficult for firefighters to access.

No one was injured.