The Food Standards Agency also says it has started its own survey of meat products in UK supermarkets, in association with local authorities.
It will do tests to show whether they contain horse or pig DNA, and if so, how much.
More top news
The suspect in the death of North Korean leader Kim Jong-un's half brother was paid $90 to help carry out what she thought was a "prank".
During an anti-Trump rally, the Oscar-winning actress urged people to stand up to the President's 'attack on democracy'.
The White House has said it would be "absurd" to link the shooting of two Indian men in Kansas to Donald Trump's rhetoric on immigration.