G-20 officials confronting global weakness, falling oil prices and potential market turmoil

Finance officials from the world's major economies are searching for the right mix of policies to bolster a still-weak global recovery while confronting a big drop in oil prices and other new threats.

The financial officials from the Group of 20 nations are also expressing concerns about potential market instability once the Federal Reserve starts increasing a key interest rate that has been at near zero since late 2008.

The discussions in Washington include finance ministers and central bank presidents of the G-20. The group is composed of traditional economic powers such as the United States and emerging countries such as China, India and Brazil.

Treasury Secretary Jacob Lew and Federal Reserve Chair Janet Yellen are representing the United States at the two-day meetings that conclude Friday.