Thieves have stolen about 700 metres of underground copper cabling from a site near Stirling.
Police believe that a vehicle was used to drag the communications cable - worth a five figure sum - to the surface and then remove it.
The cable was taken from just north of Blackdub Farm on the A84 Stirling Road at some point over the weekend.
Central Scotland Police said they were keen to speak to anyone who saw people who appeared to be workmen at the site.
A spokeswoman added they would also like to hear from anyone who has been offered cabling for sale.