Police are appealing for information after metal was stolen from a disused high school in Midlothian overnight last Thursday.
The suspects forced their way into the former Dalkeith High School on Newmills Road between midnight and 2.20am and stole a large quantity of assorted metal, including copper.
During the theft, the culprits moved two large heavy metal boiler parts outside of the school building, but abandoned them before they left.
A police spokesman said: “The building is in a residential area, and hopefully someone may have heard or seen someone or something suspicious around the building in the early hours of Thursday morning.
“Scrap metal thefts are becoming common throughout the county and Lothian and Borders Police are implementing a range of measures to try and stop thieves who benefit from selling on their stolen wares.
“It is not a victimless crime, and we will pursue anyone caught in this criminal activity.”
Anyone with information can contact Lothian and Borders Police on 0131 311 3131, or charity Crimestoppers in confidence and complete anonymity on 0800 555 111.