North Korea border security
A North Korean soldier stands on a guard post on the bank of the Yalu River near the North Korean town of Sinuiju, opposite the Chinese border city of Dandong, in China's northeast Liaoning province on Sept. 4, 2017. Getty Images/AFP/GREG BAKER

North Korea wants a number of defectors returned as a precondition to resuming reunions of families separated by the Korean War, according to Japanese wire service Kyodo on Sunday.

North Korea and South Korea began diplomatic talks last week for the first time in two years. North Korea agreed to send a delegation and two athletes to the Winter Olympics in Pyeongchang, South Korea, next month during the talks. Negotiations between the two countries hit a snag went it came to family reunification, according to Kyodo. The two countries have held family reunions for people divided by the Korean Wars over the years, but North Korea wants 13 people who defected to South Korea in 2016 and one woman who defected in 2011 returned before having more reunions. The last set of reunions took place in 2015.

The people who defected 2016 were 12 waitresses and their manager, who worked at a state-owned restaurant in China. At the North Korean restaurant, the women doubled as entertainers — singing and dancing in addition to serving food. The woman who defected in 2011, Kim Ryon Hui, has expressed that she wants to return to North Korea. She traveled to China to receive treatment for liver disease and then traveled to South Korea to make more money to afford the treatment. In an interview with CNN, she said she didn’t realize once she came to South Korea and renounced her North Korean citizenship she would not be able to return home. It is illegal to cross back into North Korea once in South Korea.

North Korea maintains that the waitresses were abducted by South Korea’s National Intelligence Service and that their manager tricked them into defecting. The women and their manager are under close supervision of the National Intelligence Service and have undergone a different and much longer integration process than other defectors. The United Nations sent an investigator to research the women’s situation and whether they had come to the country of their own volition.

The negotiations between the two countries hit another bump because of President Donald Trump. North Korean state media critiqued South Korean President Moon Jae-in Sunday for thanking Trump for making a large contribution to the recent talks.

Trump in the past had called talks with North a waste of time, but took credit for setting up the conditions for the recent talks earlier this month

“With all of the failed 'experts' weighing in, does anybody really believe that talks and dialogue would be going on between North and South Korea right now if I wasn’t firm, strong and willing to commit our total 'might' against the North. Fools, but talks are a good thing!” tweeted Trump Jan. 4.