A teenager riding a pink bicycle is suspected of stealing power tools and a purse from two cars in Brixworth.
Property was stolen from two vehicles parked in the Brampton Valley Way car park, Spratton Road, Brixworth, on Saturday, between 2pm and 2.30pm on Sunday afternoon.
A Black and Decker drill was stolen from a blue Daewoo Matiz and a purse was taken from a black Peugeot 307.
A police spokesman said a teenager was seen acting suspiciously in the area shortly before the thefts were discovered.
He is described as white, wearing a black coat and grey trousers. He was riding a pink pedal cycle and was seen riding along Brampton Valley Way towards Chapel Brampton.
Witnesses, or anyone with information, can contact Northamptonshire Police on 101. Alternatively, information can be given anonymously to Crimestoppers on 0800 555 111.