London's FTSE 100 () index finished its trading session down 3.2%, while France's CAC 40 ( ) dropped 4%. In Germany, the DAX ( ) shed 5.3%.
The move followed more moderate drops in Asia's stock markets. Japan's Nikkei 225 () index finished Monday trading down 1.9%, while Hong Kong's Hang Seng ( ) index shed 3% for the day.
"Europe's faltering management of its crisis is starting to blur the line between a banking crisis and a euro crisis, resulting in a new vote of no confidence from the markets," Lena Komileva, an analyst for Brown Brothers Harriman in London, wrote Monday in a note to clients.
"Political brinkmanship" has put the possibility of a "disorderly" currency crisis and a break-up of the euro back on the table, she said.
"There no resolution to the situation in Europe," investment manager Randy Warren, who manages $75 million in assets for Warren Financial Services, said last week of the uncertainty in Europe. "The waves of fear just recede for a while."
U.S. stock markets are closed Monday for the Labor Day holiday.
On Friday, U.S. stocks ended sharply lower following a government report showing that no net new jobs were created in August -- sparking concerns that the U.S. may be headed for another recession. The Dow Jones industrial average shed 2.2% on Friday, while the S&P 500 index lost 2.5% and the tech-heavy Nasdaq dropped 2.6%.
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