What to know

• Chinese President Xi Jinping and North Korean leader Kim Jong Un met on Monday at a rare summit in Pyongyang.S1
• Chinese leader Xi Jinping has landed in North Korea, in his first official visit since 2019. The trip comes as Beijing is trying to reassert sway over a strategically vital yet deeply unpredictable partner that has drawn closer to Russia. The BBC's China corre...S2
• The China-North Korea relationship has been strained by a fall in trade during the pandemic and Pyongyang’s increasing ties with RussiaXi Jinping visits North Korea on Monday for a two-day trip, his first in nearly seven years, as China’s president looks to re...S3