This is the shocking moment an out-of-control dog forced a sheep to plummet 70 feet over a cliff edge to it's death.

The rampaging canine penned the two sheep back towards the cliff at Seven Sisters Country Park in Seaford, East Sussex, shortly after 3pm on Saturday.

Horrified onlookers watched in terror as one of the sheep got too close to the edge of the cliff while backing away from the dog and fell into the rocks below and died.

The dog immediately turned its attention to the other trapped animal but it managed to outfox him and free itself before owners managed to collar him and whisk him away.

Eddie said: "I was just walking along the Seven Sisters with my camera taking a few photos when I came across the dog attacking the sheep - it had already started when I got there

"The dog just moved on to the other sheep while its owners screamed and shouted at him

Zoe posted: "This dog chased two lambs resulting in one being forced off the cliff.