US stock futures signal sharp drop after Asia selloff

PARIS/LONDON Aug 17 (Reuters) - U.S. stock index futures extended their losses early on Monday, mirroring a selloff in Asian and European stocks on mounting worries the equities' recent surge had run ahead of the global economic recovery.

At 0818 GMT, futures for the S&P 500 SPc1 were down 1.92 percent, Dow Jones DJc1 futures were down 2.11 percent and Nasdaq 100 NDc1 futures were down 2.11 percent.

Chinese stocks .SSEC sank 5.8 percent to their lowest close in two months on Monday on worries about added share supplies and commodity price declines, while Japan's Nikkei average .N225 fell 3.1 percent as investors locked in profits after gross domestic product data failed to produce a positive surprise.

European stocks .FTEU3 were down 1.8 percent in a broad selloff in morning trade. (Reporting by Blaise Robinson in Paris and Dominic Lau in London)