The Dow Jones industrial average dropped 313 points, or 1.9 per cent, to 16,682 as of 1:13 p.m. Eastern time Thursday.
The Standard and Poor's 500 fell 38 points, or 1.9 per cent, to 1,930. The Nasdaq composite fell 86 points, or 1.9 per cent, to 4,381.
Energy stocks dropped as the price of crude oil fell again on concerns about slowing global economic growth, while oil production remains high. U.S. crude fell $1.58 to $85.73 a barrel. Exxon Mobil fell the most in the Dow.
Stocks had jumped Wednesday after minutes from the Federal Reserve's latest meeting indicated the central bank was in no hurry to raise interest rates.