The U.S., U.K., France, Russia, China and Germany -- often referred to as the P5+1 -- sought to ensure in the negotiations that Iran would be unable to manufacture a nuclear bomb within a year.
For his fifth trip to Africa, Obama will be co-hosting a meeting for business owners, investors and policymakers.
Officers are investigating whether the violence was motivated by religious bias and have urged the victim to come forward.
The group plans to use social media to spread "the true and peaceful image of Islam," according to its website.
Iranian and P5+1 negotiators gathered in the Swiss city of Lausanne on Tuesday to achieve a breakthrough in the final round of talks.
When tampons are suspended in water contaminated by sewage, they pick up chemicals, or optical brighteners that glow under UV light.
For 2014 as a whole, the economy grew 2.8 percent -- the biggest expansion since 2006.
Bobbi Kristina has been in a medically induced coma for two months and there has been no improvement in her condition.
The YotaPhone 2 features a 4.7-inch rear display that comes with an electronic-ink screen.
Amos Yee, 17, also compared the country's founding father to Jesus Christ and made disparaging remarks about Christianity in a YouTube video.
Nigerian opposition leader Muhammadu Buhari built a lead of 2 million votes with three-quarters of states counted on Monday, raising the prospect of a stunning ballot box victory for him.
Drake's music reportedly inspired Zayn Malik to go in another musical direction.
High-end design was not common in China until lately, but societal trends are making it popular with the middle class.
Apple has given Android and Windows Phone users one more reason to switch to its iPhone.
Much of the focus this week will be on the U.S. nonfarm payrolls report for March and the Greek debt negotiations.
North Korea couldn't meet the basic requirements to join the increasingly popular bank being set up to fund infrastructure projects in Asia.
The privacy breach by the organizers had affected a total of 31 leaders who attended the summit last year.
The drone strike allegation comes as the deadline nears for a deal on Iran's nuclear program.
Xi Jinping announced China's aim to create a trade route stretching across Asia -- a $40 billion project.
Cameron will ask the monarch's approval to dissolve parliament ahead of a May 7 ballot.
Leaders of six world powers and Iran met again Monday to reach a nuclear deal ahead of a self-imposed deadline.
Officials close to the talks said the French and German foreign ministers were considering delaying a planned joint trip to focus on clearing the remaining hurdles to a deal.
