Zambian anti-drug authorities have arrested 12 Chinese construction workers for allegedly cultivating cannabis without a permit, a top government official said on Thursday.The group was based in the city of Chipata in Zambia's Eastern Province where they were building a studio for the state-run Zambia National Broadcasting Corporation."It's really regrettable that the 12 (were) arrested for alleged cultivation of cannabis," the provincial government permanent secretary Chanda Kasolo told AFP. "The arrest is really regrettable as it will delay the construction works," said Kasolo. The Drug Enforcement Commission (DEC) said in a statement that the 12 were arrested on Monday and 6.2kg of plants uprooted.Growing, dealing and consumption of cannabis for recreational purposes is illegal in Zambia. But growing cannabis for medicinal purposes is allowed provided permission is granted by the health ministry. If convicted, the 12 face a maximum jail sentence of five years.Anti-Chinese sentiment in Zambia has grown over lucrative contracts awarded to Beijing, especially in the construction sector, and government borrowing from the Asian giant.* Sign up to News24's top Africa news in your inbox: SUBSCRIBE TO THE HELLO AFRICA NEWSLETTERFOLLOW News24 Africa on Twitter and Facebook.