World stock markets fell Monday on new worries of a Greek debt default.

In the United States, the Dow Jones Industrial Average lost 2.4 percent to close at 10,655. The S&P 500 dropped 2.9 percent to end at 1,099. The NASDAQ fell 3.3 percent to hit 2,336 .

European markets closed sharply lower.

London's Financial Times 100 index ended down one percent to finish at 5,076. The CAC-40 in Paris slid 1.9 percent to end at 2,927. The DAX in Frankfurt finished off 2.3 percent , at 5,377.

In Asia, Tokyo's Nikkei index lost 1.8 percent to finish at 8,545. Hong Kong's Hang Seng index lost 4.4 percent to close at 16,822.

The price of gold rose nearly $29 to trade at $1,652.82 an ounce.

The U.S. dollar was down against the yen, but up against the euro.