The incident took place outside a house in High Street, Needingworth, at about 9pm on October 11, with the owner of a white Ford Transit going outside to investigate after hearing noises.A spokesman for Cambridgeshire police said: The owner heard the noise and went out to investigate, finding one suspect inside the van, having broken in through the drivers door, and a second suspect in the act of trying to lever open the sliding side door. Both suspects fled in a car after threatening the owner as they ran past him. It is not clear if anything was taken during the incident. The spokesman said officers had carried out house-to-house enquiries following the incident in a bid to trace the pair. Anyone with information regarding the incident should contact Cambridgeshire police on 101 or Crimestoppers, anonymously, on 0800 555 111.