The armoured train of Chairman of the Workers’ Party of Korea and the State Affairs Commission of the Democratic People’s Republic of Korea (DPRK) Kim Jong-un crossed into the Chinese border town of Dandong after 9pm on February 23 (local time) ahead of his second summit with US President Donald Trump in Vietnam, according to international media reports. 

Yonhap News Agency of the Republic of Korea (RoK) and the specialist outlet NK News reported that it was not known whether the DPRK leader was on board the train. 

Security was tight before the train's arrival with police cordoning off the riverfront some 100 metres yards from the bridge with tape and metal barriers. 

Chairman Kim Jong-un gets a red-carpet honour-guard send-off in Pyongyang (Photo: YONHAP/VNA)

On February 23, the Vietnamese Ministry of Foreign Affairs announced that Kim Jong-un will pay an official friendship visit to the Southeast Asian nation in the coming days.

The visit is made at the invitation of General Secretary of the Communist Party of Vietnam Central Committee and President of Vietnam Nguyen Phu Trong.

DPRK leader Kim Jong-un before leaving Pyongyang station for an official visit to Vietnam and attending the DPRK-USA Hanoi Summit (Photo: YONHAP/VNA)

Vietnam is making meticulous preparation for the second summit between the DPRK leader and US President Donald Trump, which is slated to take place in the capital city of Hanoi on February 27 and 28.

North Korean leader Kim Jong Un onboard the train to Hanoi. Photo: KCNA

Dong Dang railway station in Vietnam's northern province of Lang Son which borders with China. Photo: Zing 

VNA