There's a call for dog owners to keep their pets on leads when walking near livestock.
It's after a number of lambs were killed in a dog attack on a farm near Pontypool.
Farmer James Bourne says he lost 10 lambs and one ewe in the incident. A further 6 lambs were injured.
Our reporter Sarah Powell has been to meet James. Watch her report below:
Gwent Police confirmed they attended the incident in the early hours of Friday morning, but that they were unable to find the owners of the dogs.