Devon and Cornwall Police think the fire may have been started deliberately.
Detectives are appealing for anyone who may have seen any suspicious activity in the area either in the late evening of Sunday 12th May or the early hours of Monday 13th May.
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It will be a breezy start, with clouds arriving around lunchtime. The afternoon will be sunny with showers.
Tuesday will start dry and bright with lighter winds, before cloud thickens bringing some outbreaks of rain through the afternoon.
The day's gusts will ease as the evening goes on. It will be mostly dry with cloud cover but occasional clear spells.