Police are appealing for witnesses after a fire in Calow.
At 4.45am today, the occupants of a house on Top Road saw a fire outside their property.
When they went to investigate they found a petrol can had been set alight and placed next to their front door.
The fire caused damage to the door and guttering.
Police are carrying out a joint investigation with the fire service and anyone with information is asked to contact PC Jennifer Brocksopp on 101 or Crimestoppers on 0800 555 111.