LAUSANNE, Switzerland - Iran and six world powers ramped up the pace of negotiations over a preliminary deal on the Iranian nuclear program, as their self-imposed deadline approached. Full Article
TOKYO - Asian stocks rose across the board on Tuesday after a rally on Wall Street and steps by China to shore up its economy boosted risk appetite, while Greek debt worries again haunted the sagging euro. | Video
ABUJA - Nigerian opposition leader Muhammadu Buhari built a lead of 2 million votes with three-quarters of states counted, raising the prospect of a stunning ballot box victory for a man who first came to power three decades ago via a military coup. Full Article | Slideshow
The death toll in northern Chile after last week's devastating floods is set to rise, although relatives and friends of the missing hold out hope that their loved ones are still alive. Rob Muir reports.