Iranian and Western officials have said differences remain over Tehran's uranium enrichment capacity.
Several world leaders marched together, in Paris, in a show of solidarity against terrorism.
Pay data is politically and economically sensitive as Britain heads towards a general election in May.
After recent events in France, Australia and Canada, Obama has called world leaders to the White House.
"I call on all the French people to rise up this Sunday ... to defend the values of democracy, freedom and pluralism," Francois Hollande says.
Thousands of French citizens and almost two dozen world leaders will turn out Sunday to condemn the terrorist acts that rocked the country.
Amedy Coulibaly reportedly told his captives at a kosher grocery store that if France "didn't attack other countries -- I wouldn't be here."
Cameron and Obama will discuss a number of issues at hand, like the situation in Ukraine, the Islamic State group and counterterrorism.
The European Commission ordered the struggling airline to pay back over 65 million euros in illegal state aid.
Abu Hamza, whose real name is Mustafa Kamel Mustafa, was extradited to the U.S. from the UK in 2012 after spending eight years in prison.
Jide’s tablet, the Remix Ultra, runs Remix OS, a customized version of Google’s operating system.
The announcement follows the U.S. government's decision to close 15 military bases across Europe.
European banks paid huge bonuses to employees ahead of new rules that will cap rewards to curb excessive risk-taking.
The decision to close 15 military bases could result in a reduction of about 2,000 U.S. troops in the UK over the next several years.
The image, shared over 100,000 times on social media, went viral after being shared by a fake account claiming to belong to Banksy.
The decision to send the US attorney general comes even as countries across Europe have beefed up security to prevent further attacks.
Al Qaeda militants in Syria are plotting attacks to inflict mass casualties in the West, possibly against transport systems or "iconic targets", the head of Britain's MI5 Security Service said on Thursday.
Muslims around the world have taken to social media to defend their religion against anti-Islamic sentiment in the wake of the Paris magazine attacks.
French authorities on Thursday honored the two police officers killed in the Charlie Hebdo attack.
Even as India continues to woo its wealthy expats to attract investments, the latter may not oblige.
It is unclear whether the shooting is connected to the Charlie Hebdo attack on Wednesday.
Tesco is cutting the price of hundreds of branded products such as Hovis bread, Kellogg's cornflakes and Stella Artois lager.