South Sudan's sacked Vice-President Riek Machar no longer has a role to play as a political leader in the country, the presidency says.

A Saudi Arabian prince is executed for shooting dead a compatriot during a brawl three years ago in the capital Riyadh, the interior ministry says.

The US accuses Islamic State militants of using civilians as human shields as Iraqi forces advance on the group's stronghold in Mosul.

Ecuador acknowledges it has partly restricted internet access for WikiLeaks founder Julian Assange, who is staying at the country's embassy in London.

A Chinese-born Mexican businessman accused of drug trafficking arrives in Mexico after losing a nine-year battle against extradition from the US.

Indonesia could "wipe out" paedophilia with its new policy of chemical castration, President Joko Widodo tells the BBC.

Europe’s Schiaparelli robot will soon attempt the risky descent to the surface of Mars, after a 500 million km journey from Earth.

A US air force base says it has accidentally released 150,000 gallons of contaminated water into the sewer system of Colorado Springs.