A 35-year-old Guinean national arrested for alleged possession of nearly a kilogram of cocaine last week has been charged with cross-border trafficking, Municipal Deputy Police Chief Sok Khemerin said on Monday. Sergio Benpo, 35, was caught with around 920 grams of cocaine in his shoes and underwear during a raid on Thursday at his rented house in Chamkarmon district, Sok Khemerin said, adding that the man had been attempting to transport the drugs from Thailand to China. Sok Khemerin said 20 other “Africans” had been arrested in separate raids in the district and were being held pending investigations into their immigration status.