• Plants had an estimated street value of HK$14 million, while a host of equipment used to speed up plant growth were also seized in Wednesday's raid
• Force reveals 3,000 sq ft warehouse operated as indoor farm in Sheung Shui, but says officers swooped in before product could reach the local market

Hong Kong police are investigating a drug ring after a raid on an indoor marijuana farm in the New Territories led to two arrests and the seizure of 991 cannabis plants, which the force says were destined for local consumption.

Inspector Chu Siu-lung of the Narcotics Bureau on Thursday revealed details about the farm officers had raided in Sheung Shui on Wednesday. "Inside the 3,000 sq ft warehouse, there were three tents used to house cannabis plants of different growing stages."

The plants weighed about 84kg in total and had an estimated street value of HK$14 million (US$1.8 million), he said.

Do you have questions about the biggest topics and trends from around the world? Get the answers with SCMP Knowledge, our new platform of curated content with explainers, FAQs, analyses and infographics brought to you by our award-winning team.

Acting on intelligence, officers had swooped on the single-storey warehouse at Ying Pun Tsuen off Fan Kam Road.

He said machines that produced carbon dioxide, solar lights and nutrient solution were seized along with other items that were used to speed up plant growth.