(BLAINE, Pa.) -- Seven children were killed Tuesday night after a fire broke out at a farmhouse in Pennsylvania. According to officials, the blaze started around 11:00 p.m. at a two-story farmhouse in Blain, just north of Harrisburg.
State Trooper Tom Pinkerton said the children's mother was in the barn milking cows when another child alerted her to the fire. The mother then ran to the home of a neighbor, who called 911, before running to get the children's father, who was taking a nap in his milk delivery truck a short distance away.
"Once the father was alerted, he immediately rushed back to the house," Pinkerton said. "At that time, the fire department was already on scene. The residence was fully engulfed."
Six girls and one boy, ranging in age from seven months to 11 years old, died in the fire, according to police. The three-year-old girl who told her mother about the fire survived.
According to the county coroner, the children died from smoke inhalation.
UPDATE: ABC News has learned that the initial investigation shows that the fire may have been caused by one of the children playing with a space heater. A source told ABC News they believe an open flame from the space heater set a child's blanket on fire. The source said burn patterns indicate the fire started on the floor, spread to a piece of furniture, and then to the ceiling.
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