Firefighters are investigating a blaze at a boarded up property in Burnley.
Two fire crews were called to a house in Cleaver Street at 3-30am today.
Firefighters removed boards from the front door and entered the property wearing breathing apparatus.
A thorough search was carried out in hazardous conditions and a hose reel was used to extinguish the flames.
An investigation has been launched into the cause of the fire.