Police have seized 30 cannabis plants and arrested one man at a house in Norwich.
Five officers raided the property on Meadow Way at around 1am today.
A 25-year-old man who lives at the address was arrested and taken to Aylsham Police Station for further questioning.
Sgt Adam Edge said the electricity board had to be called out to cut power to the house.
He added: 'Norfolk Constabulary takes the production of cannabis very seriously and this sends out a strong message that it will not be tolerated in our community.'
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