"We are racing, and the question is how do we put barriers? So if a car was to fly out it doesn't kill people," IMF Managing Director Kristalina Georgieva said.

Federal Reserve Chairman Kevin Warsh said Friday he won't prejudge what the U.S. central bank will do about interest rates at its upcoming meetings in October and December.

The U.S. and other wealthy nations need to urgently tackle mounting global debt levels that are weighing most heavily on low-income countries and straining the global financial system, the head of the International Monetary Fund said Wednesday.