Police have been drafted in to investigate a "suspicious" fire at an empty house in Grange Park.
The fire started in a bedroom at an unoccupied house in Overdale Grove, with two fire engines and crews from Blackpool called out at 3.08am today, a spokesman for the Lancashire Fire and Rescue Service (LFRS) said.
Firefighters wearing breathing masks used a water jet to put out the flames, and a large fan to clear the property of smoke, he added.
They were on the scene for around three hours, with the council called to board up the home this morning.
No injuries were reported.