A 7-year-old girl and her father died early Thursday morning in a house fire near Mukilteo. Leslie Hynes of South County Fire said it happened about 3 a.m. in the 2800 block of York Road. The home is located at the end of a long driveway. The house was fully engulfed when firefighters arrived. Firefighters had to back out of the house after the roof collapsed. "It was a really rapidly moving fire. Floors were already in danger of collapse," said Hynes. After the fire was out, firefighters found two people inside: a 42-year-old man and his 7-year-old daughter. The pair were in the same room, investigators said. Just like several people in the neighborhood, Hynes said firefighters were also emotional. "It's always hard and our hearts go out the family and the fiends and victims. A fire like this is hard on our crews too," said Hynes.