Police in northern Vietnam have arrested six people for allegedly trafficking 21 women and teenagers to China to work as sex slaves.
The state-run Labor newspaper says the ring allegedly promised the victims they would be given jobs in China, but were instead sold to brothels for 10 million dong ($500) to 15 million dong ($750) each.
The paper says 20 of the victims managed to escape to Vietnam or were rescued by authorities.
Tuesday's report says the ring leader was 22-year-old Ngo Thi Hung Trang, who herself was trafficked to China in 2008. It says she ran a brothel in China and colluded with five other ring members, aged 20-27, to sell the victims.
More than 2,400 Vietnamese women were trafficked to China between 2004 and 2009, according to the Ministry of Public Security.