North Korean Foreign Minister Ri Yong-ho traveled to China for meet and talks with his Chinese counterpart, following a historic visit of North Korean leader Kim Jong-un just a week ago.

North Korea’s leader met with Chinese President Xi Jinping last week in his first official trip abroad since rising to power in December 2011.

China’s Foreign Ministry spokesman, Geng said on Tuesday, North Korea’s top diplomat was due to meet with Chinese Foreign Minister Wang Yi.

Following his China visit, Ri is due to travel to Russia, Azerbaijan, and other former Soviet republics in the days ahead, according to Japan’s Kyodo news agency, citing a diplomatic source.

China remains the North’s main ally and trade partner, though their relations have relatively cooled when Beijing began enforcing UN Security Council sanctions aimed at containing Pyongyang’s nuclear and missile programs.

North Korea’s leader is also scheduled to hold talks with South Korean President Moon Jae-in on April 27 as well as a potential meeting with US President Donald Trump.