U.S. Special Representative for North Korea Stephen Biegun will travel to Moscow this week to discuss the ongoing negotiations with Pyongyang, the State Department announced on Tuesday.

The meetings come at the tail end of a series of high-profile contacts in recent months between Russian and North Korean officials discussing increasing economic cooperation and ways of getting around UN sanctions.

It also comes as Russian and South Korean media are reporting on a potential first summit between Kim Jong Un and President Vladimir Putin in the Russian Far East city of Vladivostok next week.

Biegun “will travel to Moscow April