An undercover investigation in China by animal rights group PETA has found leather goods sold globally may be made out of the skin from slaughtered dogs.

PETA Asia filmed footage of dogs being bludgeoned to death so that their skin can be turned into leather gloves, belts, jacket collar trim, cat toys and other accessories to be sold around the world.

At the time of filming, which took place in November, around 300 dogs were waiting for slaughter. The animal rights group said it was told as many as 100 to 200 dogs are being skinned at the processing facility per day.

In some cases, the dogs were skinned while still alive. Others were killed using metal pinchers and a wooden pole.

"Most of the world's leather comes from China, where there are no penalties for abusing animals killed for their skins," PETA said. "So if you buy leather, remember: there's no easy way to tell whose skin you're really getting.

"Being sickened is not enough. Only actions will help these animals."