Theories abound over murder that shocked Moscow
Afghanistan's army is engaged in its largest offensive against the Taliban without the support of international combat troops.
Anna Durytska, the Ukrainian girlfriend of murdered Russian opposition politician Boris Nemtsov, is flying home after being questioned by police in Moscow.
Israeli Prime Minister Benjamin Netanyahu has said his coming speech to the US Congress is "not intended to disrespect" President Barack Obama.
Drinking a few cups of coffee a day may help people avoid clogged arteries - a known risk factor for heart disease - South Korean researchers believe.
A quick-thinking skydiving instructor in Western Australia came to the rescue when one of his students had an epileptic seizure during a jump.
More than a dozen artefacts have been stolen from a Chinese museum near Paris, including a replica of the King of Siam's crown that was given to Napoleon III.
The Los Angeles police chief says a homeless man shot dead by police had reached for an officer's weapon before being killed.
There is "no hiding" from the failures of authorities in Oxfordshire where young girls were groomed, a retired detective tells Newsnight.
The Football Association is planning to enter men's and women's Great Britain teams at the Rio 2016 Olympic Games.
For the second year running, Singapore tops the list as the world's most expensive city to live in, says the Economist Intelligence Unit.
Hundreds of parents are arrested in north-west Pakistan for refusing to allow their children to be vaccinated against polio.
America is closing in on the 50th anniversary of one of the seminal moments of the country's civil rights movement, the march from Selma to Montgomery.
Dating app Tinder announces it will charge the over-28s nearly four times as much for its premium features as it does younger users in the UK.
US stocks hit record levels, with both the Dow Jones and the S&P 500 closing at all-time highs and the Nasdaq breaking the 5,000 barrier for the first time in 15 years.
Iraqi forces say they have retaken some districts around Tikrit in their fight to recapture the strategic city from Islamic State.
England and Sunderland footballer Adam Johnson is arrested on suspicion of sex with a 15-year-old girl, and later released on bail.
Natalia Revuelta, who supported Fidel Castro when he was planning his insurgency and became his lover, has died at the age of 89 in Havana.
The European Commission says it is trying to maintain EU unity after Greece accused Spain and Portugal of conspiring against it in bailout talks.
The mother of Islamist militant Mohammed Emwazi says she immediately recognised his voice when she heard him on a hostage video released by Islamic State.