It took crews nearly three hours to contain a house fire in Dayton early Wednesday. A 911 call led firefighters to a vacant house on Kumler Avenue, near Superior Avenue, around 12:20 a.m. Wednesday. When crews arrived, they found flames coming from the house. The fire spread to a nearby home. Authorities aren’t sure if anyone was living at the second house. Firefighters finally got the fire under control just before 3 a.m. Wednesday. No injuries were reported. Fire officials have not given an estimate of damages caused by the fire. The cause of the fire is under investigation.