Redbridge might have a reputation for being one of the greenest, leafiest boroughs in London, but even police were surprised to find a £1million haul of cannabis growing in Goodmayes.

Met officers discovered more than 1,000 plants across 30 rooms in the abandoned Mayesbrook Clinic, Goodmayes Lane, on Thursday, August 8.

The "sophisticated cannabis farming system" was dismantled by officers and police confirm no plants have been left at the scene.

Det Insp Gareth Gilbert said: "Taking such a large drug haul off the streets is a great catch for the Met.

"Violence is one of the main by-products of the illegal drug industry, so it is imperative that we continue to tackle this problem head-on.

"We will continue with our enquiries to establish who was the architect of this illegal operation and who was involved in maintaining it."

So far no arrest have been made and inquiries continue.