The United Nations is trying to rescue five North Korean defectors, including a 14-year-old girl and a pregnant adult female, who are currently at risk of being repatriated back to their home country after Chinese authorities arrested them.

A new U.N. document suggests that the five individuals — one male and four females — were arrested in the east coast city of Huangdao on Sept. 13 during a failed attempt to flee from Shenyang, China to South Korea. They were then held in a police station in Qingdao, according to the document.