In phone call, he says 'some negative factors' need attention

China hopes the United States will appropriately address issues regarding Taiwan by honoring the one-China policy and the three key bilateral joint statements made to date, President Xi Jinping told US President Donald Trump in a telephone conversation on Monday.

The conversation came at a time when two-way ties have been strained by Washington's recently unveiled plan to sell arms to Taiwan and the incursion of a warship into Chinese territorial waters off the Xisha Islands in the South China Sea.