The police are investigating two sheep attacks in a field at Crossags in Ramsey.
The first incident took place on Wednesday, July 18, where three sheep were mauled by a dog, resulting in the death of all three animals.
On Monday morning (yesterday) three more sheep suffered injuries. There have been several sightings of the dog believed responsible over the last few days by members of the public.
The dog has been described as being black and the same size as a border collie.
Police are appealing to anyone who may have witnessed any of the incidents or have seen the dog in or around the area to contact them.
The police reminded dog owners to keep their animals under control.
Any person who may have any information regarding the incident should contact PC 279 Lizzie Stoddart, PC 296 Jenny Groves, or any other officer at Ramsey police station.