Arsonists have set fire to a flat in Millfield, Peterborough.
Crews from Dogsthorpe and Stanground were called to the blaze in Lincoln Road at 9.57pm on Tuesday, December 15.
Two firefighters wearing breathing apparatus used a hose reel to extinguish the fire. The flat was vacant.
Crews returned to stations by 10.55pm.
The cause of the fire was deliberate. Anyone with information should contact police on 101 or Crimestoppers anonymously on 0800 555111.