Dorset Police is investigating a suspicious fire at a property in Salisbury Road, Burton.
Police were called at 12.04am on Friday 12 June after the fire service reported the circumstances were believed to be suspicious.
Officers are continuing to work with the fire service to establish the cause.
Detectives are asking anyone who saw suspicious activity in the area around the time of the fire to come forward.
Residents with CCTV or doorbell footage, and motorists with dashcam footage, are also being urged to contact Dorset Police quoting occurrence number 55260086792.
