Around 0700 hours, Box 30-01 dispatched units to the 3600 block of Market Street for smoke from a building. Headquarters advised the responding duty chief that PD was on location with fire from the roof. Chief 1-30 on location with a working fire in a one-story, auto repair garage. Engine 3-37 (US Navy - Mechanicsburg) arrived, hooked to a hydrant at 36th & Market Street, and stretched an attack line to the front of the building. The fire was knocked down using 2 handlines in about 15 minutes with extensive overhaul. No injuries were reported.