Burglars broke into a school and stole power tools and copper piping from classrooms that were being renovated.
The offenders forced open a door at Breadsall Hilltop Junior School, in St Andrews View, Derby, between 6pm yesterday and 8.30am today.
They took a disc cutter, a Hilti electric breaker and copper piping.
Police investigating the offence want to hear from anyone who saw suspicious activity or people hanging around the school site.
Witnesses or anyone with information should call Derbyshire police on 101, quoting crime reference 27372/14. You can also call Crimestoppers, anonymously, on 0800 555 111.
