A day after flirting with record levels, U.S equity markets on Friday extended a global-market meltdown after the United Kingdom, in a stunning decision, voted to sever its more than 40-year membership in the European Union.

At the closing bell, the Dow Jones Industrial Average plunged 610 points, or 3.39% to 17400. The S&P 500 dropped 76 points, or 3.60% to 2037, while the Nasdaq Composite shed 202 points, or 4.12% to 4707.

The major averages ended just off the lows of the session. During the final hour of trade, the Dow fell 647 points. To illustrate the rush on Wall Street, the Vix, which measures expected volatility over the next 30 days, jumped 44% during the session to 24.92.

“We expect the next several days to be as turbulent as other major market shocks of the last 15 years: September 11, the Lehman bankruptcy in 2008, the 2011 U.S. debt downgrade…and the 2015 China slowdown,” Erik Oja, banking analyst at S&P Global Market Intelligence said. “Once the dust settles, investors will have a clearer view as to the longer-term effects of Brexit.”... Read More: Fox Business