Death by clubbing: the brutality of Thailand's pig slaughterhouses

Humane killing practices are virtually unknown in the majority of Thailand's abattoirs, say campaigners, with millions of pigs dying in pain

All photographs by Jo-Anne McArthur/We Animals

Warning: this article includes some graphic images that some readers may find distressing

Photos of shirtless workers clubbing pigs with bats in a Thai slaughterhouse have prompted campaigners to call for wider training and monitoring of humane welfare practices.

Undercover images taken in the central Thailand abattoir and shared with the Guardian also shows workers stunning the animals on their eyes with what appear to be homemade stunning machines, contrary to equipment recommendations.