Rochester Firefighters responded this morning for the report of a house fire on Lorenzo St. While responding, the assignment was filled out for multiple calls reporting a house fire. Engine 5 went on location with fire showing from the first floor of a 1 1/2. Battalion 2 assumed command and reported a working fire. Command further requested a second alarm as he had two houses on fire. The second alarm companies were Engine 1,17 and Truck 2. The cause of the fire is under investigation.