Traders work on the floor of the New York Stock Exchange, May 9, 2013.

The S&P 500, which rose above the 1,600 level only about two weeks ago, is now less than 40 points away from 1,700.

Sustainable natural-resource management must accompany Africa’s rapid economic growth if the continent is to prosper, argues former UN Secretary-General Kofi Annan.

Workers take part in the rescue effort after a underground training classroom collapsed in Big Gossan at the Grasberg complex in remote West Papua province in this May 17, 2013 picture provided by PT Freeport Indonesia.

Rockfalls hamper rescue efforts for 23 miners still missing after a tunnel collapse at giant Indonesian copper mine. | Call for Grasberg mine to stay shut following disaster

Turkey's Prime Minister Recep Tayyip Erdogan greets members of parliament from his ruling AK Party (AKP) during a meeting at the Turkish parliament in Ankara, on May 14, 2013.

New rating stamps approval on decade of reform; bond yields hit record lows and Turkish lira weakens.