Nigeria's militant Islamist leader Abubakar Shekau may have been killed by security forces during a shoot-out, an army spokesman says.

New York City police arrest 19 people and seize 254 firearms in what authorities call the city's largest-ever guns bust.

Libyan Interior Minister Mohammed Khalifa al-Sheikh resigns after only three months in the post, citing a lack of support from the prime minister.

Cities are getting smarter but what actually does that mean and are you living in a dumb one?

Brazil complains over the "unjustified" detention at London's Heathrow airport of the partner of a journalist who published material leaked by Edward Snowden.

A way of firing up the body's immune system in order to attack cancer has been discovered by US researchers.

A Chinese policeman is detained for hurling an infant to the ground while drunk, say reports - but only after a furious response on social media.

South African athlete Oscar Pistorius, accused of murdering his girlfriend Reeva Steenkamp, is due to return to court in Pretoria.