Stocks tumble as Ukraine war overshadows robust jobs report

U.S. stocks racked up more losses Friday as concerns about Russia's invasion of Ukraine drowned out a report showing robust hiring in the U.S. last month.

The S&P 500 fell 0.8% to close 4,3287 as the conflict in Eastern Europe took a perilous turn. Russian President Vladimir Putin's forces on Friday were accused of shelling a huge nuclear power plant before taking control of the facility. A fire at Europe's largest nuclear plant caused by the shelling raised worries about what's next. 

Russia blamed Ukraine for the fire, calling it a "monstrous provocation," but the U.S. Embassy in Kyiv accused Russian President Vladimir Putin of "a war crime" with what it said was the "shelling of Europe's largest nuclear plant."