BBC Wales's Penny Roberts reports on the Rottweiler attack

Joe Pritchard, from Caerphilly, was mauled about the head and face when the dog turned on him.

The dog is now being kept in a local kennel before a decision is made on whether it should be destroyed.

His mother Rowena says the attack has left him deeply traumatised.

Rowena Pritchard: Son "traumatised"

"The scars will heal," she said. "It's what's inside that I'm afraid of, it will take a lot longer for him."

The boy faces wearing a cap for the next six months to hide the injuries on the top of his head. He also has two bite marks on his left temple.

The animal was left in its owner's garden while they went on holiday to Greece. It was being fed daily by a neighbour.

Police are investigating how the dog escaped from the garden and attacked Joe.

Gwent police say they must wait for the owners of the Rottweiler to return from holiday before any charges can be brought.