The North Korean flag is seen at mast past the barbed wire fencing of the North Korean embassy in Malaysia on March 27, 2017.

The U.S. special envoy for North Korea will meet with his North Korean counterpart on Wednesday in Pyongyang to prepare for a summit later this month between President Donald Trump and North Korean leader Kim Jong Un, the U.S. State Department said on Monday.

U.S. envoy Stephen Biegun said last week he aimed in working-level negotiations with his new North Korean counterpart Kim Hyok Chol to map out "a set of concrete deliverables" for the second summit between Trump and Kim.