On November 25, border guards in Hai Hoa border post in Mong Cai city detained Le My Hanh, born in 1994 and residing in Hoang Thanh commune, Hiep Hoa district in the neighbouring province of Bac Giang, when she was transporting the drug to Vietnam.Hanh then confessed that she bought the drug from China to sell in Vietnam.Authorised agencies are handling the case in line with the law.