The U.S. stock market ended sharply lower Friday, in a broad selloff that saw the Dow Jones Industrial Average fall almost 700 points. The Dow closed 1.6% lower, while the S&P 500 slumped 1.5% and the technology-heavy Nasdaq Composite dropped 1.

A wave of selling hit the stock market today after job growth in December came in much stronger than expected.

World shares were mixed on Thursday after the latest U.S. economic data calmed frazzled nerves on Wall Street. U.S. futures edged lower, with the contract for the S&P 500 down 0.2% and that for the Dow Jones Industrial Average less than 0.