Police have released images of four young males they wish to speak to in connection with an incident of criminal damage in Whaley Bridge.
It happened at around 9.50pm on Monday 31 May at the Kier construction site next to Toddbrook Reservoir.
There are also clearer images of three of the males.
Anyone with information about those pictured or the incident is asked to get in touch with police via the following methods, quoting occurrence number 21000321411:
• Facebook – send a private message to /DerbyshireConstabulary
• Twitter – direct message the contact centre on @DerPolContact
• Website – complete the online contact form at www.derbyshire.police.uk/Contact-Us.
• Phone – call 101.
You can also anonymously contact the independent charity Crimestoppers on 0800 555 111 or by visiting www.crimestoppers-uk.org.