『朝日新聞』の記事；
北朝鮮、米国籍の大学教授を拘束か 抑留の米国人３人にソウル＝牧野愛博
2017年4月23日16時57分
中国吉林省、延辺大学科学技術学院の男性教授が先週、平壌で北朝鮮当局に拘束されたと、北朝鮮関係筋が明らかにした。男性は５０代で米国籍という。拘束が事実であれば、北朝鮮が抑留する米国人は３人目になる。北朝鮮国営メディアは２３日現在、事件について報じていない。同筋によれば、男性教授は１カ月ほど前に訪朝しており、出国する間際に拘束されたという。米韓関係筋によれば、米政府も同様の未確認情報を入手しているが、北朝鮮で米国の利益を代表するスウェーデン大使館は事実関係を確認していないという。（ソウル＝牧野愛博）
http://www.asahi.com/articles/ASK4R54YCK4RUHBI02F.html
“US citizen detained by North Korea as Japanese ships join war games” https://www.theguardian.com/world/2017/apr/23/north-korea-detains-us-citizen-japanese-ships-us-war-games
『ガーディアン』の記事によると、「延辺大学」というのは以前の所属先で、現在は（３月から）「平壌理工大学」で「会計」を教えているという。
The detained American, according to Park Chan-mo, the chancellor of the Pyongyang University of Science and Technology, is Tony Kim, who also goes by his Korean name Kim Sang-duk.Park said Kim, who is in his 50s, taught accounting at the university for about a month. He said Kim was detained by officials as he was trying to leave the country from Pyongyang’s international airport.
The Swedish embassy in Pyongyang said it was aware of a Korean-American citizen being detained recently, but could not comment further. The embassy looks after consular affairs for the US in North Korea because the two countries do not have diplomatic relations.
Park said Kim had taught at the Yanbian University of Science and Technology in China before coming to Pyongyang. He said he was informed that the detention had “nothing to do” with Kim’s work at the university but did not know further details.
As of Sunday night in Pyongyang, North Korea’s official media had not reported on the detention.
Though no details on why Kim was detained have been released, the detention comes at a time of unusually heightened tensions between the US and North Korea. Both countries have recently been trading threats of war and having another American in jail will probably up the ante even further.
