US stock markets have plunged with the Dow Jones skidding by hundreds of points over fears that Greece's debt problems may halt the global economic recovery, PRESS TV reported.
The Dow lost almost 1,000 points before recovering to a loss of 505 on Thursday, as traders watched on television the protests on the streets of Athens.
On the other hand, Yields on Treasury bonds and notes soared as traders sought the safety of US government debt. The yield on the benchmark 10-year note, which moves opposite its price, fell to 3.39 percent from Wednesday's 3.54 percent.
The stock market has had periodic bouts of anxiety about the European economies during the past few months.
They have intensified over the past week even as Greece appeared to be moving closer to getting a bailout package from some of its neighbors.
The losses in stocks were so widespread that just 139 stocks rose on the New York Stock Exchange, compared to 3,029 that fell. The major indexes were all down more than 4 percent.