They are Phang Thi Chu, born in 1978, Mua A Chong, born in 1995, and Mua A Giang from Kho Hong village, Chieng Xuan commune, Van Ho district; Mua A Sang, born in 1987 from Dao village, Muong Lum commune, Yen Chau district, Son La province, and Kha A Ky, born in 1975, from Hang Kia village, Pa Co commune, Mai Chau district, Hoa Binh province.Apart from 40 packs of heroin, the police also seized one car, two motorbikes and other evidence.