POLICE have seized a cannabis factory worth an estimated £3.5million after they discovered the huge grow in an industrial unit in Avonmouth

Officers discover the mammoth amount of cannabis plants, believed to be worth millions of pounds at an industrial unit, in the Burcott Road area of Avonmouth, on Monday, October 17.

The estimated street value of the plants is approximately £3.5million.

Stroud News and Journal: Cannabis found in AvonmouthCannabis found in Avonmouth (Image: Avon and Somerset Police)

Police are yet to identify those responsible for the production of a class B drug but say they believe it to be a 'professional illegal operation.'

Inspector Steve Davey said: “Since the discovery of these cannabis plants work has taken place to remove them and make sure the area is safe.

“A criminal investigation is underway to ascertain who was responsible for this large and seemingly professional illegal operation.

“We would like to take the opportunity to ask the public to report any suspicious activity around industrial units or abandoned businesses that may be being used for criminal activity, such as has been the case in Avonmouth over a significant period of time.”

Anyone with information that could help our investigation is asked to call 101 and give reference number 5222249859.