Boko Haram insurgents attack Cameroon army base, several wounded
Militants have killed thousands in a bid to carve out an Islamist emirate in northern Nigeria, and increasingly staged raids across borders
Guns mostly fall silent in east Ukraine as ceasefire takes hold
Ceasefire foresees the creation of a neutral buffer zone and withdrawal of heavy weapons
Brazil probes link between HSBC Swiss accounts, Petrobras scandal-sources
Brazil is probing whether Brazilians were involved in opening undeclared accounts with HSBC's Swiss private bank
Rebels fighting for more territory ahead of Ukraine ceasefire-Kiev military
Fighting has intensified in eastern Ukraine as rebels try to seize more territory before a ceasefire takes effect
#WhereIsTheBomb warns Egyptians of violence-related traffic
Egypt drivers are turning to social media to stave off a new threat - the traffic chaos caused by roadside bombs
American hostage Mueller's family, U.S. government say she is dead
President Obama vows to hunt down the culprits; cause of U.S. aid worker's death still unknown
China executes businessman linked to former security tsar
Liu Han, once ranked China's 230th richest person, was accused of murder and running "mafia-style" gang
Islamic State says U.S. hostage killed in air strike in Syria
U.S. officials said they could not confirm that the woman, 26-year-old humanitarian worker Kayla Mueller had been killed