Seogwipo City in Jeju, South Korea, has caught a distributor harvesting underripe tangerines from a garden using a drone. The city has stopped the harvesting and disposed of the citrus fruits found. It has started using drones to crack down on the distribution of non-commodity citrus fruits that do not meet the required sugar content of 8 brix. The city will impose penalties on non-commodity citrus distributors and has set standards for the sweetness of products for tangerines under the 'Jeju Special Self-Governing Province Ordinance on the Production and Distribution of Citrus Fruits'.