BBC News - World
Updated: 1 hour 38 min ago
They wanted to surprise their parents by going home alone - frostbite and hypothermia were the result.
The ruling means certain transgender people can be barred from joining or staying in the military.
Prince William interviews Sir David Attenborough at the World Economic Forum in Davos.
Mourners said the six men died while saving colleagues during last week's terror attack in Nairobi.
Frances Tiafoe credited pickle juice with his run to the quarter-finals of the Australian Open - but what is the science behind it?
They are followed by A Star Is Born, Vice and Black Panther.
The European Commission fines the payments giant for stopping retailers looking for cheaper services.
Greenland went through an "unprecedented" period of ice loss in the last two decades.
Sebastien Bras's restaurant Le Suquet is back in the guide, despite his request to be removed.
Emiliano Sala was born in Santa Fe, Argentina - but it is in France that the 28-year old has forged his reputation.
Two of Japan's big convenience store chains will stop selling adult magazines ahead of Tokyo 2020.
The American singer has yet to comment after a woman accused him of raping her in a hotel room.
Two South Africans, a Croatian, a Bosnian and a Kosovan were in a vehicle that blew up while transporting mines.
Ex-US marine Paul Whelan was arrested last month on suspicion of spying - claims his family denies.
At least 43 security personnel are now known to have died in Monday's devastating attack on an intelligence base.
The pop star claims several designers have refused to dress her for this year's Grammy Awards.
The superstar footballer faces tax evasion charges which could result in an €18.8m (£16.6m) fine.
The football superstar is expected to agree a deal that will spare him jail time.
South Korea is a world leader in speed skating and the latest allegations have shocked the public.
Stefanos Tsitsipas beats Roberto Bautista Agut in four sets to continue his superb run in Melbourne and reach the Australian Open semi-finals.