Witnesses are being sought following a theft from a building site in Corby.
Between 7.30pm and 8.45pm on Monday (May 8), offenders in a Renault Traffic van got into the building site after cutting the chain to the gate in Gainsborough Road.
A police spokesman said building materials were taken.
One of the offenders is described as wearing a grey tracksuit and an Adidas jumper and with his face covered.
Witnesses can contact police on 101 or Crimestoppers anonymously on 0800 555111.