Two cars and a front door were damaged after arsonists struck in Higham Ferrers.
Police are appealing for witnesses to the arson attack in Oaks Drive in the town on Friday night.
Two cars and the front door of a house in Oaks Drive were set alight at about 10pm on Friday, causing damage to both cars and the door.
Officers would like to speak to anyone who may have been in the Oaks Drive area at that time and saw any suspicious activity.
Witnesses or anyone with information about the incident is asked to contact police on 101 or Crimestoppers anonymously on 0800 555111.