India, Feb. 6 -- Taiwan's ties with the United States are "rock solid," the island's president said on Thursday, hours after President Donald Trump and Chinese leader Xi Jinping spoke on the phone about topics that included the self-ruled island's future.

"The Taiwan-US relationship is rock solid, and all cooperation projects will continue uninterrupted," Taiwan President Lai Ching-te told reporters during a visit to textile merchants in western Taiwan. The comments came after Xi, in his first call with Trump since November, warned the US president to be "udent" about supplying arms to the self-ruled island, according to a readout of their call provided by China's Foreign Ministry.

Taiwan is a self-ruled democracy that China claims as i...