Authorities in South Korea are investigating a batch of pills which are said to contain human flesh.
Officials believe the tablets, which are purportedly used to boost stamina, have been smuggled in from China. It is claimed they contain extracts of dead human foetuses.
The first case was uncovered in South Korea last August and since then smuggling of the capsules has increased.
Laboratory tests have found traces of human blood in the pills, prompting health fears.
“Super-bacteria and other viruses, which are harmful to the human body, have been detected,” said Shin Eul-Gi, a customs laboratory official at Incheon airport.
South Korean authorities say they will be stepping up inspections, in a bid to stop the smugglers.