Officials are trying to determine what caused a house fire in Levittown.Fire officials say the blaze started around 8:30 p.m. Thursday at the home on Blacksmith Lane. According to officials, the fire broke out in the kitchen and the homeowner initially tried to fight the flames with a garden hose.Officials say the homeowner was treated for smoke inhalation and that three firefighters were also injured trying to battle the blaze.Sources say the home was filled with debris, which made it difficult for firefighters to get inside the home.