Accordingly, the train carrying the DPRK leader left Pyongyang on February 23 afternoon.
The Chairman is accompanied by senior DPRK officials, including his younger sister Kim Yo-jong and Vice Chairman of the WKP Central Committee Kim Yong-chol.
The KCNA did not mention whether or not First Lady of the DPRK Ri Sol-ju is included in the entourage.
The news agency also reported that the DPRK leader will pay an official friendship visit to Vietnam at the invitation of General Secretary of the Communist Party of Vietnam Central Committee and President Nguyen Phu Trong.
This is the first time the DPRK media has reported about the second DPRK-USA summit, which is due to take place in the Vietnamese capital city of Hanoi on February 27 and 28.