Two men were arrested on suspicion of drug offences after police raided a vehicle and home in the Marshland St James area.
It happened yesterday when police stopped a car travelling on the A1101 in Welney and were confronted with a strong smell of cannabis.
Twelve cannabis plants were found in the vehicle.
As a result of this search, police executed a drug warrant on a property in Smeeth Road, Marshland St James, and found a total of 250 cannabis plants at the premises.
Two men, aged 23 and 54, were arrested at the scene on suspicion of being concerned with the supply of drugs.
Both men were questioned at King’s Lynn Police Investigation Centre and released on bail until October 17 while officers continue with their investigation.