BUCKS COUNTY, Pa. (WPVI) -- A firefighter was hurt while battling a house fire in Bucks County Friday morning.

Officials now say it was arson.

The flames broke out around 5:30 a.m. in the 700 block of Cedar Avenue in Croydon.

Video from Chopper 6 shows thick smoke coming from the three-story home.

Officials say dangerous conditions inside the home forced firefighters to evacuate, but before the order was given, a firefighter fell down a set of steps.

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