The plan to avoid a hard border in Northern Ireland is "unviable", the PM says in a letter to the EU.
After five years in control, rebels pull out of a strategic town in their last remaining province.
Evelyn Hernández's murder retrial has shocked El Salvador and united women's rights groups.
The Foreign Office says it is seeking further information from Chinese authorities.
Two women share their stories of surviving and then recovering from acid attacks in Uganda.
The singer talks slut-shaming and fashion choices in an interview by Pharrell for V Magazine.
The test comes weeks after the US pulled out of a key Cold War-era nuclear treaty with Russia.
The estate of the former financier was worth $577m (£475m) when he killed himself, reports say.
The country could see a new coalition government formed or fresh elections as the PM faces removal.
A Lebanese town is banning Christians from buying and renting property to Muslims.
Unregistered migrants have until Tuesday to leave or face expulsion from Turkey's biggest city.
The $145m Chandrayaan-2 aims to become the first space mission to land on the Moon's south pole.
The chip, which is larger than an iPad, is designed for complex artificial intelligence systems.
Manchester United's Harry Maguire calls on social media companies to "stop these pathetic trolls" after team-mate Paul Pogba is subjected to racist abuse online.
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