LONDON (CNN) -- A scandal over horsemeat found in frozen beef products is spiraling across Europe as several governments launch investigations and a company involved says it has determined who "the villain" is.
The police probes and legal maneuvers responding to the discovery are quickly becoming a tangled web -- much like the complex supply chain of the meat products themselves.
Swedish food producer Findus has been a focus of the uproar since it announced Thursday that it had withdrawn its lasagna from UK stores as a precaution. The products were pulled Monday after French supplier Comigel raised concerns about the type of meat that was used, Findus Sweden said.
But Findus is only one of several companies that receives products from Comigel. Others inculde Axfood, Coop, and ICA, all of which announced they have pulled certain meat products from the shelves due to the possibility they contain horsemeat.
Findus Nordic -- which oversees the company throughout the Nordic region -- said Sunday it has begun legal action against Comigel and its subsuppliers.
"We are only at the beginning of our legal process. Comigel will end up in a lot of legal processes going forward, I imagine," Findus Nordic CEO Jari Latvanen said Sunday in an interview with CNN. "Comigel is the villain."
Comigel has not responded to CNN's repeated requests for comment.
Findus' French arm, meanwhile, said it will file a legal complaint Monday against a Romanian business that is part of the supply chain. It did not name the business publicly.
And French government officials say their investigation will include a look at parts of the supply chain in some other countries.
France's consumer affairs minister, Benoit Hamon, has ordered an immediate investigation, and results will be available by midweek. In a statement, Hamon said a provider in Luxembourg and traders in Cyprus and the Netherlands are also part of the chain being probed.
Scandal rocks meat industry
The scandal comes just weeks after a discovery that shocked many and triggered a crisis in Europe's meat industry.
Last month, horsemeat was found in hamburgers sold in the United Kingdom and Ireland. Officials in Ireland have blamed Polish meat ingredients.
In January, the Food Safety Authority of Ireland found that 10 out of 27 hamburger products it analyzed in a study contained horse DNA, while 23 of them -- or 85% -- tested positive for pig DNA.
In nine out of the 10 burger samples, the horse DNA was found at very low levels, the inspectors said, but in one sample from Tesco, Britain's largest retailer, the horse meat accounted for about 29% of the burger.
Tesco apologized to customers after the revelation and promised action to make sure it never happened again.
Countries launch investigations
In addition to the probe in France, Sweden announced Sunday that it is reporting Findus to police after horsemeat was found in products labeled as beef in Sweden, the United Kingdom and France.
"When we have discovered that products have been sold with the wrong labels, in this case beef lasagna containing horsemeat, it is normal that we report the company to police, according to the Swedish food legislation," Lukas Linne, press secretary with the Swedish National Food Agency, told CNN.
The agency met Sunday to discuss the scandal.
British police are investigating as well.
British officials held an emergency meeting Saturday in London. Participants agreed "meaningful results" must be achieved by Friday, UK Food Standards Agency spokesman Brad Smythe said.
Officials discussed what tests are possible, what laboratory capacity is needed, and what can be done to protect consumer confidence, he said.
The evidence so far suggests "either criminal activity or gross negligence," Environment Secretary Owen Paterson said, adding that "more bad news" could come.
UK food businesses have been ordered to test all processed beef products for authenticity and report back to the authorities by Friday.
"I am determined that we get to the bottom of this and that any wrongdoing discovered is punished," Paterson said in a statement.
Prime Minister David Cameron weighed in Friday on Twitter. "This is completely unacceptable -- this isn't about food safety but about proper food labeling and confidence in retailers," he wrote.
The British arm of Findus also said it is considering legal action against suppliers. Early results of an internal investigation "strongly suggest" the horsemeat contamination of a beef lasagna product "was not accidental," the company said.
'A crime, a scandal'
Latvanen, fighting to protect his company's reputation, said it is " a serious case of fraud which we at Findus uncovered."
"What has happened with Comigel is a crime, a scandal," he said in the interview with CNN.
Findus France issued a statement with a similar message: "We were deceived. There are two victims in this affair: Findus and the consumer."