Reuters

• Man with knife assaults two police officers outside Buckingham Palace

  A man with a 'large knife' who assaulted two police officers outside Buckingham Palace on Friday night has been arrested, British police said.

• Trump has shown 'long-term commitment' to Afghan war, says top US general

  'The Taliban cannot win on the battlefield, it's time for them to join the peace process,' General John Nicholson told reporters.

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  Spain hunts for driver in van rampage, says Islamist cell dismantled

  The Catalonia police on Sunday said investigators were still working on the hypothesis of 12 suspects in the Barcelona attacks that took place on Thursday and that one man was still sought. Speaking to local radio, spokesman Albert Oliva said this man was Moroccan-born 22-year-old Younes Abouyaaqoub.

• Spanish police still searching for Barcelona attack van driver

  Spanish police were on Saturday searching for the driver of a van that ploughed into a crowd in Barcelona, killing 13 people, in one of two deadly attacks in Catalonia carried out by a network of suspected Islamist militants.

• Hawking slams UK Government for health service crisis

  Physicist Stephen Hawking has criticised the British government for causing a crisis in the state-run National Health Service (NHS), saying it had to be protected from becoming a profit-making US-style system.

• After firing, Steve Bannon returns to Breitbart 'killing machine'

  With Stephen Bannon, the worry always was that he could be even more disruptive to President Donald Trump's White House from outside than he was within.

• Spain hunts driver who killed 13 in Barcelona van attack

  Spain mounted a sweeping anti-terror operation on Friday after a suspected Islamist militant drove a van into crowds in Barcelona.

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  At least 12 dead in Barcelona terrorist van attack; Islamic State claims responsibility

  A van mowed through crowds of tourists on Barcelona's most famous avenue on Thursday, killing about a dozen people in an attack that was claimed by Islamic State.

• North Korea delays Guam missile firing, waits for US move

  The United States and South Korea have prepared for more joint military drills, which has infuriated the North, and experts warned Pyongyang could still go ahead with a provocative plan.

• Venezuela crisis: How Donald Trump is making a bad situation worse

  US President Donald Trump's talk of possible military action in Venezuela could be a political life-line for the country's unpopular leader, who has long used the threat of American aggression to justify policies that have shredded the economy.

• ISIS' senior leaders killed in US airstrike

  Several senior members of Islamic State's central Asian affiliate were killed in a US air strike in Afghanistan, officials said on Sunday.

• Donald Trump under fire for failing to denounce white supremacists as one dead in neo-Nazi protests

  A gathering of hundreds of white nationalists in Virginia took a deadly turn on Saturday when a car ploughed into a group of counter-protesters and killed at least one person in a flare up of violence that challenged U.S. President Donald Trump.