article: Officers from North Wales and Dyfed-Powys police forces have tweeted photographs of sheep which have been injured or killed in dog attacks. A rural crime team has published a montage of distressing pictures. The caption reads: "This needs no words or music. Just time to reflect on the devastating impact an irresponsible dog owner can have."
summary: Police are urging dog owners to be responsible following attacks on sheep ahead of the lambing season.