Seventeen people have been arrested as part of an operation which saw cannabis plants worth £1.7m seized across Sussex.
Police swooped at 19 addresses, in locations including Eastbourne and Brighton.
Sussex Police said it found Class A drugs and more than £15,000 in cash as part of the operation last month.
A total of 1,740 plants were seized.
A search of an industrial building in Maple Road, Eastbourne, uncovered 500 plants.
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