Police are urging dog owners to keep their pets under control after livestock was attacked in Hayfield.
An unnamed location was one of four parts of Derbyshire where sheep worrying has been reported.
Other areas were in Winster, Belper and Repton.
Police received the four calls from farmers whose sheep have been worried, injured or even killed as a result of dog attacks in the last two weeks.
Sergeant James Shirley, of Derbyshire’s Rural Crime Team, said: “If you take your dog for a walk while exercising in rural areas, please make sure to keep it under control and on a lead near to livestock.
“Our advice applies to people walking in the countryside at all times of the year, and we do find that reports often increase during lambing season.”
He added: “We are aware that people will be looking to walk their dogs as part of their daily exercise in open spaces at this time, but please remember to respect our farming communities.
“Calving and lambing is important to our rural economies and if livestock are harmed then this increases pressure on farmers and also our local vets.”
You can report livestock worrying by one of the following ways:
- Facebook, by sending a private message to /DerbyshireConstabulary
- Twitter, a direct message to @DerPolContact
- Website, by completing the online contact form www.derbyshire.police.uk/
- Phone, by calling the 101 non-emergency number.
- You can also call Crimestoppers anonymously on 0800 555 111.