Joe Biden says Taliban now faces "existential" choice about whether they want to be recognised by international community

US President Joe Biden says US troops may stay in Afghanistan beyond his planned 31 August withdrawal date to help evacuate Americans.

There have been chaotic scenes at Kabul Airport as foreign powers seek to get their citizens home.

President Biden again defended his handling of Afghanistan, where the Taliban have capitalised on the US pulling out to sweep to power.

Asked if he thought the Taliban have changed, the US president said no. He said they now faced an "existential" choice about whether they want to be recognised by the international community.