The company, David Colman Engineering, found six out of their flock of 52 sheep dead last week.

They believe the sheep were attacked by dogs overnight on November 16 on their farm based in Sporle in Norfolk.

Andrew Colman, who runs the farm along with his father, David, said: "We feel so angry at the situation and the lack of action.

Andrew Colman is unsure on the future safety of the farm's other sheep (Image: © ARCHANT NORFOLK 2016)

"It's awful to think the owner of the dogs may........

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