YOUNGSTOWN — An early Sunday morning fire at Liquid Blu, 21 W. Federal St., is under investigation.

Reports state several fire crews were called out around 4 a.m. to the nightclub for flames and heavy smoke in the bar area. Firefighters had to break down the door to get inside.

According to the report, a nearby building received smoke damage.

The cause of the fire and where it started in the building as well as damage estimates were not known Sunday afternoon.