The incidents took place overnight between Wednesday and Thursday in Stanch Hill Road, Gloucester Road and Buckingham Way. A spokesman for the force said: Unknown offenders have forced or attempted to force their way into vans and private cars and have stolen tools and other personal items. A witness reports seeing three people behaving suspiciously in the area at the time however we are appealing for further witnesses to come forward. Anyone who believes that they saw or heard anything suspicious can call Cambridgeshire police on 101, e-mail firstname.lastname@example.org or contact Crimestoppers, anonymously, on 0800 555 111. The spokesman added: Residents living in the area are advised to remove valuable items so far as is possible.