The escalating coronavirus emergency sent the stock market into its worst slide since the Black Monday crash of 1987, extending a sell-off that has now wiped out most of Wall Street's big gains since President Trump took office.

Plus, the Pentagon confirms the U.S. has conducted airstrikes across Iraq against the Iranian backed militia, Hezbollah. President Trump authorized U.S. military strikes in response to Wednesday's rocket attack in Iraq that killed two American troops and a British service member.

Those stories and more on this International Edition