U.S. Special representative for North Korea Stephen Biegun landed in South Korea just over an hour ago for follow up meetings with his North Korean counterpart.
Biegun said nothing to reporters as he left the airport, but diplomatic sources say he's expected to meet with his new North Korean counterpart Kim Hyok-chol on Monday to discuss Pyeongyang's denuclearization and the corresponding measures the U.S. will give in exchange.
They are also likely to fine tune some details of the planned summit between their leaders, scheduled for late February.
The exact venue and time of this Monday's talks have not been revealed, nor has the length of Biegun's stay.
But before he meets with Kim, Biegun will first meet with his South Korean counterpart Lee Do-hoon Monday morning, reportedly to prepare.