Police and health officials have raided a slaughterhouse and meat company in the United Kingdom as part of an ongoing investigation into horse meat that was labeled as beef, authorities said Tuesday.

The West Yorkshire slaughterhouse is believed to have supplied horse carcasses to a firm called Farmbox Meats Ltd., which then sold the meat as beef for kebabs and burgers.

Authorities have suspended operations at both facilities and seized all remaining meat and company files, which include a client list. Neither company was immediately available for comment.

"I ordered an audit of all horse-producing abattoirs in the UK after this issue first arose last month and I was shocked to uncover what appears to be a blatant misleading of consumers," said Andrew Rhodes, Food Standards Agency director of operations.

Read - British authorities raid slaughterhouse over horse meat scandal

Previously:
Horse: Coming soon to a meat case near you?
Poll – making a meal of mustang