North Korean leader Kim Jong Un began a two-day visit Tuesday, Chinese state-run television said, exactly a week after Kim's landmark summit with U.S. President Donald Trump, as Beijing seeks a larger role in talks with Pyongyang over its nuclear weapons.

The visit was Kim's third this year to Beijing — North Korea's top ally and main benefactor.

Kim was expected to meet with Chinese President Xi Jinping to brief him on the results of Kim's summit with Trump in Singapore. At that meeting, Kim pledged his country's commitment to work "towards the complete denuclearization of the Korean Peninsula," while Trump vowed to provide security guarantees to North Korea.