Pittsburgh Bureau of Fire was called to the 200 block of W. Elizabeth Street just before 2 p.m. for reports of a fire in progress in a residential structure.
Three of the five residents of the home were safely outside in a vehicle when they spotted smoke and called 9-1-1. The other two residents were not at home at the time.
The Red Cross arrived on scene to assist the displaced residents with temporary accommodations.
One firefighter from Engine 12 experienced chest pains as a result of fighting the fire. He was transported to the hospital in stable condition by medics.
The Fire Investigation Unit was on scene to determine the exact cause of the fire, which is believed to have originated in the kitchen area of the home.
The investigation is ongoing.