Boris Johnson will defend his handling of the Afghanistan crisis in the Commons as he reiterates his vow to use "every economic, political and diplomatic lever" to help Afghans.
Both he and Foreign Secretary Dominic Raab have faced criticism over the UK's response to the Taliban takeover.
The prime minister will make a statement in the House later on Monday.
It comes after the UK's top general said "everybody got it wrong" on how quickly the Taliban would gain control.
Labour has been among those warning that the UK could face a heightened terror threat if extremism is allowed to flourish in Afghanistan.
The last British and US troops left Afghanistan at the end of August, bringing their 20-year military campaign in the country to an end.
There has been criticism of the way the West withdrew, with questions over how the Taliban was able to seize control of the country at such speed.
And there is also concern that many Afghans who were eligible to come to the UK -many of whom worked with the British armed forces or government - have been left behind.
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