U.K. navy reports more attacks on tankers in the Strait of Hormuz as Trump says he's poised to make a "big decision" on whether to "annihilate" Iran's leadership.

China, at the request of Saudi Arabia, has urged Iran to rein in its allies in the Yemen-based Houthis, who have conducted a military blitz that has left Saudi oil exports and shipping exposed. Saudi officials reached out to the Chinese after the Houthis’ rapid advances along the Red Sea coast this month,