MOSCOW, October 18. /TASS/. Head of the North American department at North Korea’s Foreign Ministry, Choe Son Hui, has arrived in Moscow, a diplomatic source told TASS on Wednesday.

"Yes," the source said answering a question if the diplomat has arrived.

He did not rule out that the diplomat could meet with a representative of Russia’s Foreign Ministry.

Choe Son Hui arrived in Moscow to take part in the Nonproliferation conference.

The Center for Energy and Security Studies, a Russian NGO, jointly with Russia’s Foreign Ministry is holding the Nonproliferation conference in Moscow on October 19-21.

Russian Foreign Ministry Spokeswoman Maria Zakharova said the country’s top diplomat Sergey Lavrov is expected to give a speech at the conference on Friday on the key Russian approaches and priorities in this area.