VIDEO: Crews in Cranston were called to battle an early morning house fire on Sunday. Firefighters responded to a building on Pontiac Avenue around 2 a.m. and found heavy flames shooting from the structure. One person on scene told 12 News that the building is both an office and residential building. He says everyone got out safely. Fire crews say they dealt with some slippery conditions, as water on the street from the fire trucks froze up fast. No injuries have been reported and it is unclear how the fire started.