Officials say a suspicious fast-moving fire damaged a house in the Kensington section of Philadelphia.
The fire broke out past 1 a.m. Tuesday on the 3000 block of D Street.
Firefighters arrived to flames showing on the second floor in the rear of the house.
Crews quickly went to work, dousing the flames and getting the fire under control within ten minutes.
Everyone was able to get out of the home safely.
The Red Cross helped the residents find a place to stay.
The fire marshal is investigating the cause of the blaze.