Major stock indexes tumbled, with the Nasdaq briefly falling more than 2 percent on Thursday, resuming their downturn after a labor market report became the latest datapoint to show the economy has stalled.

The Dow Jones industrial average slid 155.65 points, or 1.31 percent, at 11,740.79. The Standard & Poor's 500 Index was down 20.64 points, or 1.64 percent, at 1,239.70. The Nasdaq Composite Index dropped 48.47 points, or 1.80 percent, at 2,644.60.

New U.S. claims for unemployment benefits edged down last week, pointing to a marginal improvement in the labor market, the Labor Department said.

(Reporting by Ryan Vlastelica)