A Landrover was stolen after thieves forced their way into a house and took the keys.
Police are appealing for information about the burglary in Eaglethorpe near Warmington yesterday morning (Tuesday).
Thieves got into the large house sometime between 9.30am and 11.30am by forcing open the front door.
A police spokesman said: “House keys and car keys were stolen together with a black Landrover Freelander, registration number beginning AF62 J**.”
Witnesses to this incident, or anyone with information about it, can call Northamptonshire Police on 101 or information can be given anonymously to Crimestoppers on 0800 555111.