The Peterborough Police Service is investigating after a suspicious fire at an abandoned house at the corner of London and Water Street on Tuesday night.
At roughly 8:20 p.m., officers were called to the residence regarding a suspicious fire.
Police used the Remotely Piloted Aircraft System to assist Peterborough Fire to identify hotspots.
The area was closed to traffic for about three-and-a-half hours before being reopened.
Police expect the Ontario Fire Marshal on the scene on Wednesday.
Anyone with information is asked to call Peterborough Police at 705-876-1122 x555 or Crime Stoppers at 1-800-222-8477 or online.