A farmer is urging dog owners to be more responsible after a number of his animals were left killed or injured in a series of attacks.
Peter Gear says attacks on lambs, ewes and geese on his land in Hertfordshire are starting to threaten his livelihood.
Police say they believe domestic dogs on the loose are to blame and have launched an investigation.
Click below to watch our report from Sarah Beecroft. You may find some of the images disturbing.