It is suspected that 12 tonnes of turkey butterflies, processed by Severnside Provisions Ltd at premises in Newport, South Wales were supplied to independent butchers and catering outlets throughout South and Mid Wales, South West and south-central England.
Eight tonnes have so far been retained and prevented from entering the food chain after action by Newport City Council.
There is no evidence at present of any specific risk to public health from consuming this product. However, it is illegal to supply meat from unapproved premises.
More top news
A court has ruled that the original coffin in which Lee Harvey Oswald was buried belongs to his brother, not the undertaker's that sold it.
Manic Street Preachers lyricist went missing nearly 20 years ago but mystery still surrounds exactly what happened to him.
Deputy Prime Minister admitted he wanted to hit David Cameron on more than 20 occasions on late-night chat show 'The Last Leg'.