Sweden is the latest European country to be hit by a widening meat products scandal, as frozen-food company Findus recalls beef lasagna meals there after tests confirmed they contain horsemeat.
Already, Britain, Ireland, Poland and France have been drawn into the growing saga over the use of horsemeat and the apparent mislabelling of products along the supply chain. Millions of burgers have been recalled in recent days due to the scandal.
Eating horsemeat is not generally a health risk, but the cases have spurred disgust in places where such meat is far from a staple.
Earlier this week, Findus said it was recalling beef lasagna meals in Britain because of concerns raised by its French supplier Comigel.
Tests later found that some of those meals contained between 60 to 100 per cent horsemeat instead of beef.
Then on Friday, a second British company, Aldi, confirmed that tests on Comigel-supplied products it had recently recalled - beef lasagna and frozen spaghetti bolognese - showed some contained between 30 and 100 per cent horsemeat.
Aldi said it felt "angry and let down" by Comigel and that it was severing ties with the French supplier.
Findus official Henrik Nyberg said about 20,000 frozen lasagna meals were being recalled in Sweden.
Nyberg said the products didn't pose any food safety risk, and were recalled solely because they had been mislabelled.
British Prime Minister David Cameron said on Friday that the scandal was "completely unacceptable" and must be addressed.
Cameron acknowledged there was "great public concern" around the "very shocking" issue, saying "people will be very angry to find out they have been eating horse when they thought they were eating beef".
The British leader said his country's secretary of state for agriculture was speaking with ministers and would meet with Britain's Food Standards Agency.
Officers from Scotland Yard also have met with the Food Standards Agency over the horsemeat scandal, but the police force said there was currently no official investigation.
Concerns about the use of horsemeat burst into the spotlight earlier this year, after it emerged that beef products from three companies in Ireland and Britain contained horse DNA. That led to the massive recall of burgers.