KINGSESSING - A Philadelphia firefighter was seriously injured while fighting a house fire Saturday morning.Officials with the department said the firefighter was working with his colleagues to douse a fire on the 1100 block of South Paxon Street early Saturday morning, around 7 a.m., in Philadelphia’s Kingsessing neighborhood.According to authorities, the firefighter was seriously injured after falling from the roof of the two-story rowhome that was on fire.MORE HEADLINES:The man’s colleagues on the scene began to treat his multiple injuries, and he was then rushed by medics to a local hospital for treatment.Fire officials did not release any further information regarding the firefighter’s condition.Approximately seven people were displaced as a result of the fire..