Archaeologists have uncovered two 2,400-year-old pure gold 'bongs' that were used by tribal chiefs to smoke cannabis during ceremonies.

The historic drug paraphernalia was found alongside 7lbs of other gold items when an area of land was dug up in Russia to make way for power lines.

They items had been buried in a chamber lined with stones before being concealed by a thick layer of clay.

Archaeologists have uncovered two 2,400-year-old pure gold 'bongs' (pictured) that were used by tribal chiefs to smoke cannabis during ceremonies

Criminologists have since carried out tests which indicate that the thick, black residue found inside the vessels comes from the cannabis and opium which the tribal royal smoked.

Experts believe the items belonged to the Scythians, a nomadic warrior race who ruled large swathes of Europe and Asia between the 9th century BC and the 4th century AD.

It means the so-called bongs could be some of the oldest in existence.

Several historians say the Scythians smoked, and sometimes brewed, a strong concoction of cannabis and opium in order to alter their state of mind before heading into battle.

The historic drug paraphernalia was found alongside 7lbs of other gold items - including a ring, a cup and a neck ring - when an area of land was being dug up in Russia to make way for power lines

Famed Greek historian Herodotus, who died in 425BC, wrote: ‘Scythians used a plant to produce smoke that no Grecian vapour-bath can surpass which made them shout aloud.’

The dig also led to the discovery of golden cups, rings, and neck rings. All the items have since been cleaned and put on display in a Russian museum.