United States President Donald Trump on Thursday hinted at the possibility of the release of three American hostages, who were detained in North Korea. In a tweet, President Trump wrote, "As everybody is aware, the past Administration has long been asking for three hostages to be released from a North Korean Labor camp, but to no avail. Stay tuned!" The three American citizens are - Kim Hak-song, Tony Kim and Kim Dong-chul. They were accused of espionage or doing "hostile acts" against North Korea.