Police have confirmed the three cars in Aswardby severely damaged by fire was arson.
Lincolnshire Fire and Rescue crews from Spilsby and Alford were deployed to Harrington Road, Aswardby, just after midnight on Saturday.
A spokesman tweeted: “Severe fire damage to three cars. Extinguished with two BA, two hose reels and Cobra. No injuries.”
The cause has not been revealed at this time but this brings the total car fires in the Spilsby area over the past few days to four.
A crew from Spilsby attended Brun Balderstone Close at 2.18am on Thursday. According to this occasion Lincolnshire Fire and Rescue, on this occasion the cause was “an electrical fault”.