Afghanistan live news: US warns citizens at Kabul airport gates to 'leave immediately' due to security threats

US warns citizens to leave airport gates and not to travel to airport; White House says the next few days of evacuation operation likely to be the most dangerous Fear and fury in Kabul as thousands face being abandoned by UK 'We feel hopeless now': British nationals left behind in Kabul Afghans crowd airport gates as evacuation efforts wind down 'Bad options all around': Biden's vow to avenge attack could take years Twelve days of chaos in Kabul - in pictures See all our Afghanistan coverage 1.5...