A house was broken into in the early hours of yesterday morning (Tuesday) and a quantity of money stolen.
Three sets of car keys were taken from the property in Guilsborough Road, Hollowell, and the corresponding vehicles opened up and searched but nothing was taking from them and the cars were not stolen.
Officers would like to hear from anyone who saw anything suspicious in the area last night or in the early hours of this morning. They would also like to speak to three men who were in the area yesterday afternoon selling compost and garden equipment.
The men were in a white van. Police would also like to speak to anybody who saw the van or was approached by the men.
Witnesses, or anyone with information, are asked to call Northamptonshire Police on 101.
Alternatively, they can call the independent charity Crimestoppers anonymously on 0800 555 111 or use the anonymous online form at www.crimestoppers-uk.org.