A FIRE broke out in an unoccupied building in Chesterfield after someone broke a window in a downstairs room.
Police are appealing for witnesses to the blaze, which broke out in Mastin Moor in the early hours of Friday morning.
The blaze, in premises at the junction of Worksop Road and Renishaw Road, is believed to have started at 3.30am.
Police are treating the fire as suspicious.
n Anyone with information about the fire should call Detective Constable Andy Toyn on 101, or Crimestoppers on 0800 555 111.