At 3:11pm, Stations 21 and 51 (EMS) were alerted for a vehicle crash with injuries on I-79 southbound near the 82.7 mile marker. Having just returned from a prior incident, Engine 21-2 and Chief 21 responded. Upon arrival, crews found an SUV in the middle of the road on its roof with all occupants out of the vehicle. EMS transported 3 patients with non-life threatening injuries while 21 crews provided traffic control and clean-up. Harmony Fire District (22) was also called for assistance.