Tucson Fire is investigating after a fire broke out at the Tucson Cycle and Ski in the 4600 block of 22nd Street. According to crews on scene, firefighters were called to the building around 3:30 a.m. Wednesday for a sprinkler alarm deployment. When fire crews arrived they saw white smoke coming from the building’s eaves. Firefighters were able to get flames under control, which were contained to the mechanical room. The cause of the fire is unknown at this time.