Police uncover sophisticated cannabis set up hidden below trapdoor in WA backyard shed

Incredible video has revealed the shocking sight that greeted police when they raided an unassuming backyard shed.

Incredible vision has revealed the moment police allegedly uncovered a sophisticated drug set up hidden under a trapdoor on the floor of a shipping container shed.

Police made the startling discovery during an early morning raid on an address in Karnup, a regional suburb south of Perth, last week.

The footage shows a green metal shipping container stationed next to a regular garage, with items including a speaker and a trolley scattered on the grass nearby.

Incredible vision has revealed the moment police allegedly uncovered a sophisticated drug setup hidden under a trapdoor on the floor of a shipping container shed. Picture: WA Police

Two men have been charged with a number of drug offences following the discovery of an underground, ‘bunker’ buried in the rear yard of a regional property in the Mandurah district. Picture: Supplied via NCA NewsWire

As the officer, who appears to be filming on their phone, walks inside the shed, boxes of insulation can be seen stacked up on the left-hand wall, with a trapdoor seen open behind the boxes.

A steep set of stairs under the trapdoor, with numerous power points built in next to it, leads down to a bunker made up of more shipping containers that had been buried underground.

Vision from inside the bunker, built on the 9-acre property, shows a desk and chair, and multiple plants, which police allege are cannabis.

Police will allege the bunker contained a commercial scale hydroponic cannabis grow set

up; including WI-FI automatic running water systems, lighting and a carbon dioxide feeding system.

Officers seized 25 plants from the bunker.

Officers located a trapdoor inside a shipping container shed that led to more shipping containers buried underground, which police allege hid a sophisticated cannabis setup. Picture: Supplied via NCA NewsWire

Two men have been charged with a number of drug offences following the discovery. Picture: Supplied via NCA NewsWire

It will be further alleged an improvised clandestine drug lab was then found inside a granny flat detached from the main house.

Police have since charged two men over the discovery.

A 46-year-old man was charged with one count each of cultivate a prohibited plant with intent to sell or supply, possess a prohibited drug (cannabis) and possess a controlled weapon.

A 48-year-old man was charged with one count of manufacture a prohibited drug (attempted).

Both will appear in Perth Magistrates Court on September 13.