Dow tumbles more than 1,300 points amid questions whether government action on coronavirus is sufficient

U.S. stocks fell sharply again on Wednesday as investors grappled with a flood of plans by governments to limit the economic blow of the COVID-19 outbreak and debated whether the measures will be enough to limit the economic blow.

The S&P 500 index tumbled about 6.3%, while Treasuries looked to extend their biggest yield jump since 2008 on Tuesday as markets braced for a flood of government borrowing. Crude oil prices dropped to an 18-year low and the U.S. dollar rose for a seventh straight day.