



By Kang Aa-young







A man, 36, and three others have been caught growing cannabis in an apartment.







Police said the four started growing the crop in a studio apartment in Goyang, Gyeonggi Province, last November.







The walls had insulation and there were automatic lighting timers.







Police said the men sold the drug through the "deep web" or advertised it on YouTube.







Only cryptocurrencies were used for payment.





