China's President Xi Jinping called on Monday for stronger ties with Vietnam on trade and supply chains amid disruptions caused by U.S. tariffs, as he attended the signing in Hanoi of dozens of cooperation agreements between the two communist-run nations.

Donald Trump said that Xi Jinping’s ongoing tour of Southeast Asia was to “screw” the US, which hit Beijing with massive import tariffs earlier this month, even as the Chinese leader urged Vietnam to resist “unilateral bullying” by Washington.