Boris Johnson has told the EU the backstop plan for the Irish border must be scrapped because it is "unviable" and "anti-democratic".
Sudan's former President Omar al-Bashir has arrived at court to face corruption charges, which his lawyers say are baseless.
At least 14 people have died and nearly 150 injured after a car bomb targeted a police station in the Afghan capital Kabul.
The US is set to formally withdraw from a nuclear treaty with Russia, raising fears of a new arms race.
North Korea has called the test of two new missiles on Thursday a "solemn warning" against what it described as "South Korean warmongers".
The US president has vetoed resolutions in Congress to block the sale of $8.1bn (£6.5bn) worth of weapons to Saudi Arabia and the United Arab Emirates.
Boris Johnson will head to Downing Street later after taking over from Theresa May as prime minister.
Downing Street has reiterated the UK's ambassador to the US has Theresa May's "full support", despite Donald Trump saying he will no longer work with him.
Russia's unmanned Luna-25 spacecraft has crashed into the Moon after spinning out of control, officials say.
Donald Trump has confirmed that he will not take part in Republican presidential debates with his rivals in the race for the White House.