The date and venue of the second U.S.-North Korea summit are expected to be announced this weekend after officials from the two sides meet for fine-tuning.

U.S. Secretary of State Mike Pompeo and North Korean leader Kim Jong-un's right-hand man Kim Yong-chol are likely to meet in Washington on Friday.

CNN quoted a source as saying Tuesday that Kim and Pompeo will meet on Friday.

Kim Yong-chol has booked a seat on United Airlines flight 808 from Beijing to Washington taking off at 6:25 p.m. on Thursday.

He will meet with Pompeo and U.S. Special Representative for North Korea Stephen Biegun, and possibly President Donald Trump.

He is expected to bring a letter from the North Korean leader responding to Trump's suggestion to hold their second summit in the middle of February in Bangkok or Hanoi.

Biegun then flies to Sweden for talks with North Korean Vice Foreign Minister Choe Son-hui. Choe is in Beijing en route to Sweden, where she is to attend a forum bringing together representatives from countries involved in abortive six-party denuclearization talks.

