A motorcyclist suffered serious injuries in a crash on the Kilsby to Hillmorton Road.
At around 12.50pm on Monday 19 August along the B4038 a black MV Agusta F4 motorcycle, being ridden by a 44-year-old man, collided with a black Fiat Punto, which was being driven by a 46-year-old man.
The motorcyclist suffered serious injuries and was taken to Walsgrave Hospital in Coventry for treatment.
Officers from the collision investigation team at Northamptonshire Police would like to speak to anyone who may have witnessed this collision or either of the vehicles prior to it.
Anyone with information or who witnessed the collision is asked to call the Drivewatch Hotline on 0800 174615.