The slaughterhouse was closed after veterinary inspection of the animal sent to the slaughterhouse in the morning from a farm in Skjern.

An autopsy on the spot could not rule out the suspicion of swine fever, and samples of the pig have been sent for further studies at the National Veterinary Institute's laboratory at Lindholm.

It will take up to 48 hours before the results of the new tests.

Until then, the slaughterhouse in Herning will remain closed.

The employees at the slaughterhouse have been allowed to leave the slaughterhouse through a disinfectant bath.

All production at Herning has been stopped for at least the two days

“We are closely monitoring the situation together with the Food Administration,” a Danish Crown spokesman said.

“There have been no outbreaks of classical swine fever in Denmark since 1933, and fever is not dangerous to humans.”