Cannabis worth more than £500,000 on the streets has been seized after a raid on a drug farm.
Police officers found hundreds of plants of the Class B drug growing under intense lighting.
Several people were arrested at the industrial estate in Sussex.
The area is still cordoned off.
Residential neighbours had complained they could smell the plants.
Sussex Police said: “Our Tactical Enforcement Unit (TEU) carried out a proactive stop-check at a premise near Roundstone Lane, Angmering.
“A cannabis cultivation site was discovered by officers and a large quantity of Class B drugs believed to have a street value of around £500,000 were seized.
“Several men were arrested on suspicion of being concerned in the production of cannabis and remain in custody for questioning.
“Enquiries are underway as officers work to establish the involvement of those arrested and of any additional suspects.”
Chief Inspector Jon Carter said:
“We work tirelessly to reduce harm in our local communities and would ask anyone with information or concerns to make the right call and report it to us.”