A food processing plant in North Yorkshire is at the centre of a food scandal spanning two countries tonight.
It is one of three factories whose beef burgers were found to contain horse meat.
The owners of Dalepak Hambleton, at Leeming Bar, believe their suppliers in continental Europe may be the source of the contaminated meat, which until last night was on sale in British supermarkets.
You can watch the full report from Ben Chapman below.
A drug with the potential to cause cancer in humans might have entered the food chain through horse meat, Labour has claimed.
Traces of horse DNA have been discovered in a beef burgers sold in supermarkets across the UK. A Tesco burger was found to be 29% horsemeat
A list of the beef burgers, sold in UK supermarkets, that were found to contain traces of horsemeat.