REVEALED: Inside the underground drug lab

BREAKING: Police have released images from a raid which uncovered three underground bunkers and an elaborate network of tunnels in which large quantities of cannabis and ice have been located.

Toowoomba police, with Australian Defence Force soldiers, swarmed the 200 hectare Grantham property yesterday, seizing hundreds of mature marijuana plants and methamphetamines, and dismantling an elaborate hydroponic filtration system.

Tactical Crime Squad officers acted on tip-offs from the public, and confidential informants, in making the seizures which were part of 46 raids across Toowoomba, Highfields and the Lockyer Valley in the past four days.

Click through the photos to see inside the underground lab.