A West Yorkshire slaughterhouse has been shut down pending the outcome of investigations into claims they supplied and used horse carcasses in meat products purpoting to be beef.
The Food Standards Agency (FSA) and police officers entered Peter Boddy slaughterhouse in Todmorden, under suspicion of passing off horse meat as beef for kebabs and burgers.
Production at the plant has been suspended pending the outcome of investigations into the claims.
A meat plant in West Wales , Farmbox Meats in Llandre in Aberstwyth, has also been raided and shut down.
The FSA said it had "detained" all meat found at the premises and seized paperwork and customer lists from both companies.