In the past decade, at least six South Koreans have been arrested and convicted in North Korea, with three of them being Christian missionaries and the other three being North Korean-born defectors who resettled in South Korea.
The missionaries were involved in covert efforts to spread Christianity in North Korea and were arrested in 2013 or 2014. They were convicted of plotting to overthrow the North Korean government and spying for South Korea, receiving life sentences of hard labor.
