Investigators are searching for clues as to what started a house fire in Cockrell Hill Friday morning.
The fire started just after midnight at a home on the 3800-block of Dempster Avenue.
Firefighters arrived and tried to battle the flames from the front and the back of the house. The raging fire kept them from going inside, according to authorities.
Crews worked quickly to keep the fire from spreading to nearby homes.
No one was injured.
Witnesses told firefighters they saw a trail of fire leading up to the vacant home and the home and went up in flames soon after.
Neighbors told NBC 5 that no one was living in the home, that it's been for sale for a couple years and just recently sold.
Neighbor Victor Barron was playing video games and described an orange glow coming from the house, that’s when he called 911.
“I saw like some trees burning and a line of fire,” said Barron. “I thought someone was trying to burn the house.”
Investigators have not confirmed an official cause of the fire, but say it appears the fire was not an accident.
“Right now it is suspicious in nature,” said Cockrell Hill Fire Chief Michael Burns.
Burns said the department has battled six vacant house fires within three miles of each other so far this year. Those past fires are still under investigation. Burns has not said if there is any connection between the fires.
Stay with NBC 5 as we continue to gather information.