North Korea discloses it is holding another US detainee

Kim Tong Chol, a U.S. citizen detained in North Korea, is presented to reporters in Pyongyang, North Korea on Friday, March 25, 2016. North Korea presented another American detainee before the media on Friday, nine days after it sentenced a U.S. tourist to 15 years in prison with hard labor for subversion. Kim told in Pyongyang that he had collaborated with and spied for South Korean intelligence authorities in a plot to bring down the North's leadership and tried to spread religious ideas among North Koreans. (AP Photo/Kim Kwang Hyon) (The Associated Press)

Kim Tong Chol, a U.S. citizen detained in North Korea, speaks as he is presented to reporters in Pyongyang, North Korea on Friday, March 25, 2016. North Korea presented another American detainee before the media on Friday, nine days after it sentenced a U.S. tourist to 15 years in prison with hard labor for subversion. Kim told in Pyongyang that he had collaborated with and spied for South Korean intelligence authorities in a plot to bring down the North's leadership and tried to spread religious ideas among North Koreans. (AP Photo/Kim Kwang Hyon) (The Associated Press)

North Korea has presented another American detainee before the media, nine days after it sentenced a U.S. tourist to 15 years in prison with hard labor for subversion.

Kim Tong Chol told a press conference in Pyongyang on Friday that he had committed unspecified espionage acts that were attempts to undermine North Korea's leadership.

He says he was detained last October.

North Korean authorities often arrange press conferences for U.S. and other foreign detainees in which they read statements to acknowledge their wrongdoing and praise the North's political system. Those detainees have said after their releases that they were coached or coerced on what to say.

Last week, North Korea's highest court sentenced American student Otto Warmbier to prison after he confessed he tried to steal a propaganda banner.