North Korea detained US citizen Kim Hak-song on Saturday on suspicion of acts against the Pyongyang regime, the state-run Korean Central News Agency reported Sunday.
Kim is believed to be the fourth US citizen currently detained in North Korea.
In April, KCNA said Tony Kim -- also known as Kim Sang Duk -- was detained for "hostile acts" toward the North Korean regime.
Otto Warmbier, a University of Virginia student, was sentenced to 15 years of hard labor in 2016 for removing a political sign.
And Kim Dong Chul, the president of a company involved in international trade and hotel services, was arrested in 2015 and is serving 10 years on espionage charges.
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