October 19, 2017 08:36
A top North Korean diplomat arrived in Moscow on Tuesday, to attend a three-day conference on nuclear non-proliferation.
Choi Sun-hee, an official of Pyongyang's foreign ministry, did not answer reporters' questions at the airport regarding the purpose of her visit.
But speculation is running high that Choi will hold discussions with a number of former U.S. government officials who are also in Russia to attend the conference.
Washington and Pyongyang used to exchange views through unofficial talks in times of high tension.
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