Arson is suspected after firefighters from Paignton were called to two separate reports of a cars on fire in the Polsham area of the town.
Crews were called out just before 2am this morning and extinguished the fires using breathing apparatus, hose reels jets and dry powder extinguishers.
A Devon and Somerset Fire and Rescue spokesman said: "The causes of the fires are thought to be deliberate and police were also requested to attend."
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