Sussex Police have uncovered a large-scale cannabis growing facility at an isolated farm.
Detectives and uniform officers executed a drugs warrant at Warrenorth Farm, North Chailey, at 9.15am on Wednesday.
In a specially adapted outbuilding they discovered some 1,500 cannabis plants in various stages of growth, with an estimated street value of at least £1 million.
Two men aged 70 and 25, and two women aged 48 and 19, were arrested at the address on the A275 East Grinstead Road on suspicion of being involved in cannabis cultivation. Later they were in custody for interview and further enquiries.
Detective Inspector Gavin Patch said: “Although our examination of the building is at an early stage it is already clear that this is one of biggest such sites we have seen for some time.
“This was an intelligence-led operation, following up information we received. If anyone has any suspicions about such activity we ask them to call us via 101 or email firstname.lastname@example.org”