Peruvian police have arrested four people who are under suspicion of killing dozens of people for their fat.

It has been alleged the four lured unsuspecting members of the public with fake job offers before murdering them and extracting their fat for sale to cosmetic factories in Europe.

Police have said they are now making inquiries into an international network trafficking the human fat, which was supposedly selling for $15,000 a litre in Lima.

They claim the gang could be behind the disappearances of up to 60 people in the region.

The first person was arrested earlier this month in a bus station in Lima, carrying a shipment of the product.

After being arrested, he allegedly described to police how the victims were killed and their fat removed.

Police are looking for other suspected gang members, including two Italians.

The alleged buyers of the fat are also being hunted by police.