The latest stories from the World section of the BBC News web site.
Updated: 1 min 39 sec ago
Forensic video analyst Grant Fredericks says a video by Nigeria's Boko Haram group can provide clues to the location of the missing schoolgirls.
A policeman has been shot dead by a man who was later killed in a house fire, according to authorities in New Hampshire.
The discovery of a deep-sea graveyard is shedding light on the fate of dead ocean giants, scientists report.
A teacher who was attacked in her classroom died from "shock and haemorrhage" after being stabbed in the neck, an inquest hears.
US Secretary of State John Kerry warns China that the introduction of a drilling rig into seas disputed with Vietnam is "provocative".
For the first time, a woman will command a UN peacekeeping force, as Norway's Major General Kristin Lund is appointed to lead troops in Cyprus.
Heathrow and Gatwick airports both unveil revised expansion plans as they attempt to secure permission to build the UK's next runway.
The new recruits keeping birds away from Chinese planes
A top politician in northern Spain has been shot dead in public and two women have been arrested.
England boss Roy Hodgson admits there is an element of risk in his decision to overlook Ashley Cole for his World Cup squad.
Sumi Das tries an app which harnesses the power of IBM's supercomputer to help people with their shopping.
Mark Rothko's painting Black on Maroon painting goes back on public display at Tate Modern, 18 months after it was vandalised with graffiti.
Indian stock markets rise to a record high after exit polls suggest Narendra Modi-led Bharatiya Janata Party is on course to win the general election.
The World Health Organisation (WHO) rejects Pakistan's claim that the UN was involved in the CIA's fake vaccination programme to track down Osama Bin Laden in 2011.
Pfizer's commitments to maintain research and jobs should it take over AstraZeneca have been dismissed as "vague".
Chinese authorities detain a man who posted "false stories" on a foreign news site, amid an ongoing clampdown as the Tiananmen anniversary looms.
China releases weaker-than-expected manufacturing data, reinforcing concerns the world's second-largest economy is losing steam.