( CNN) North Korean leader Kim Jong Un is headed to Russia for his summit with Vladimir Putin, the North Korean state news agency KCNA said Wednesday.

The young North Korean leader left the capital of Pyongyang on Wednesday at dawning and is traveling to Russia by train, KCNA reported, as he did for his summit with US President Donald Trump in Hanoi, Vietnam.

Kim's visit to North Korea's northern neighbor comes amid an impasse in the nuclear negotiations between Pyongyang and Washington. Trump and Kim's Hanoi meeting ended early without an agreement, with the two sides seemingly far apart on how to trade sanctions relief for meaningful steps toward denuclearization.