Members of a cannibal cult in Papua New Guinea have been charged with the murders of seven suspected witch doctors.

The 29 people, including a 13-year-old boy, butchered five men and two women believed to practice ‘black magic’, allegedly ate their brains raw and made soup from their genitalia in the remote jungle region around the town of Madang.

The cult members also drank their victims’ blood believing they would attain supernatural powers and become bullet proof, a police spokesman said.

Madang Police Commander Anthony Wagambie confirmed the acts of cannibalism reported in a New Guinean newspaper and added:

‘They don’t think they’ve done anything wrong; they admit what they’ve done openly.’

Mr Wagambie said that the killers believed that the victims were practicing sorcerers and that they had been overcharging poor villagers as well as demanding sexual favors in return for their services.

The arrests have delayed elections in the Commonwealth country as voters are deterred from taking part.

They have hampered the two-week ballot currently taking place as people, particularly those near the cult’s headquarters, have been fearing for their safety.

The ballot was due to end today, but voting is now expected to finish next week.

Further delays have been caused by allegations of bribery, vote rigging and problems getting to the ballot boxes.

The cult started out attempting to tackle extortion by self-proclaimed sorcerers who were demanding money from the sick.

A local political activist told The Sydney Morning Herald that sorcery was ‘getting out of hand’ in the villages.

They said: ‘It used to be a good thing, but now it’s turned into a kind of cult.

‘They killed [the first victim] on the roadside. They cut out his heart, they cut out his brains they drank his blood.’

Sorcery and witchcraft is widely believed in the South Pacific nation and many people seek alternative explanations to misfortune, illness, accidents or death.

The country brought in a Sorcery Act to protect against attacks on those accused of practising black magic.

The cost of a witch doctor revealing a cause of death or casting out an evil spirit is usually 1000 New Guinean kina (£303), plus a pig and a bag of rice, but according to local police the victims were charging more and were also demanding sex as payment.

The killings saw police raid Biamb village, near Madang last week and arrest 29 people, eight of them women.

The leader of the cult is reportedly still on the run.

Four of the seven victims were murdered last week.

Mr Wagambie said that no remains had been recovered, adding: ‘They’re probably all eaten up.’