This is the terrifying moment two sheep were chased by an out of control dog - only for one to be the driven over the edge of the cliff.

The Argus: Picture: Eddie NolanPicture: Eddie Nolan

The photographer spotted the dog charging the two sheep while people were shouting and screaming to try and stop the animal.

The Argus: Picture: Eddie NolanPicture: Eddie Nolan

The pictures have been shared more than 3,500 times on Facebook after farmer Zoe Stanisstreet posted them with an appeal for owners to take more care and avoid sheep worrying.

The Argus: Picture: Eddie NolanPicture: Eddie Nolan

The incident happened on Saturday at 3.30pm at the Seven Sisters Country Park.

The Argus: Picture: Eddie NolanPicture: Eddie Nolan

In the post, she said: "This dog chased two lambs resulting in one being forced off the cliff. Not only is this a huge lose but both these lambs would of experienced a great deal of stress and panic - Many tourists were present during this horrific ordeal. 

The Argus: Picture: Eddie NolanPicture: Eddie Nolan

"Sheep worrying is a growing problem for farmers not only in the south east but across the country and is a criminal offence."

The Argus: Picture: Eddie NolanPicture: Eddie Nolan

A spokesman for Sussex police said: "At 9.40pm on Sunday (21 June) we received a call from a member of the public reporting that another person had told him that a dog had chased a lamb off cliffs at Seven Sisters Country Park.

"Officers will investigate to see what dog worrying offences may have been committed under the Dogs (Protection of Livestock) Act 1953."

The Argus: Picture: Eddie NolanPicture: Eddie Nolan