A cannabis factory with a street value of more than £1m has been busted by police.

The Met discovered the huge haul of cannabis plants at an abandoned hospital in Goodmayes Lane, east of Ilford on August 8.

More than a thousand plants were found growing in 30 rooms within the derelict Mayesbrook Clinic.

Detectives in Redbridge have launched an investigation into the find but at this stage, no one has been arrested.

The factory has been dismantled and all equipment has been removed from the property.

Detective Inspector 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."