At 1045 units responded to 1103 60th. Ave for a report of a building fire. Chief 38B and E-382 arrived with smoke showing from side Bravo on the second floor. Crews entering encountered a flash over in the hallway. Fire was found in the walls on the first and second floors of the church. The crews from 38 and 33 operated attack lines from E-382 on the first floor. E-92 Pulled a 400 foot back up line. Truck 17 along with T-26 and Tw-33 operated on the roof. E-93 took the RIC. It took crews about 20 minutes to gain control of the fire. Chief 38A had operations 38B had the 60th Avenue command. Car-66 had Safety. Battalion Chief 1 had side 3 Battalion Chief 1A had Div1 Chief 17B had the roof. After many hours of overhaul crews return home. The cause of the fire was accidentally set by a work crews torch doing renovations to the church.