Norwalk firefighters are investigating after they spent last night battling two separate fires.
The first one happened on Cannon Street around 5:30 p.m.
They say the fire took a long time to battle because the house was filled with garbage.
Just as firefighters were wrapping up, they got another call to a home on Larsen Street.
That fire left 15 people homeless.
Officials say one person suffered minor injuries and a firefighter was taken to the hospital for dehydration. They say that firefighter was back at work today.