If you are sensitive about animals being killed don't watch.

LIVESTOCK exporter Wellard says it was unable to stop the cruel slaughter of Australian sheep in Pakistan amid claims some were buried alive.

Pakistani newspapers say some sheep from a shipment of 21,000 that was recently rejected from Bahrain on health concerns had been inhumanely slaughtered en masse in Pakistan, where they were forwarded on to.

More health concerns were raised there, sparking a cull, despite Perth-based livestock exporter Wellard and Sheepmeat Council of Australia insisting the animals had a clean bill of health.

ABC radio on Thursday reported about 7000 of the sheep had been stabbed and clubbed to death - and some had been buried alive - and a further 3000 were not accounted for.

Various reports said an employee of Pakistani importer PK Livestock had videoed the slaughter on a mobile phone.