The final UK evacuation flight solely carrying civilians from Afghanistan has left Kabul airport, the Ministry of Defence has confirmed.
Any further flights leaving Kabul under the UK's evacuation operation will have UK diplomatic and military personnel on board.
Britain's ambassador to Afghanistan Laurie Bristow said the UK 'has not forgotten' the people it is leaving behind in a video filmed on the runway at Kabul airport.
It is understood any further flights would be able to transport those still needing evacuation, but would now also include personnel travelling back to the UK.
Mr Bristow said the time had finally come to end the UK airlift.
Almost 15,000 Afghan and British citizens have been evacuated over the past two weeks, he added.
Mr Bristow said: "It's time to close this phase of the operation down but we haven't forgotten the people who still need to leave, and we will do everything we can to help them."
Tom Tugendhat, a Tory MP who fought in Afghanistan, previously said he was disappointed the evacuation effort was coming to an end.
The former army officer and now chairman of the Commons Foreign Affairs Select Committee told BBC Breakfast: "I'm extremely sad about this and I very much hope that it might go beyond the August deadline but we found out a few days ago that it wasn't, so I was expecting it.
"It still leaves me extremely sad that so many of my friends have been left behind."
Questioned over whether the UK could have done better when withdrawing personnel from Afghanistan, Mr Tugendhat said: "In the last week, probably not, but this has been a sprint finish after a not exactly sprint start."
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"There are going to be questions to be asked to the Foreign Secretary about the processing in the UK in recent weeks that we're going to have to see what the answers are."
Defence Secretary Ben Wallace previously admitted there were between 800 and 1,100 Afghans eligible under the Afghan Relocation and Assistance Policy (Arap) scheme who would be left behind.
Meanwhile around 100 and 150 UK nationals will remain in Afghanistan, although Mr Wallace said some of those were staying willingly.
But a number of MPs have said that based on the correspondence they had received asking for help, they thought this was an underestimation.
It comes after two British adults and the child of a British national - understood to be a teenager - were killed in a bombing on Thursday, with another adult and child injured.
The BBC reported a London taxi driver, Mohammad Niazi, had been killed in the Kabul attack after flying out to help his family return home.
But it was not confirmed if he was one of the UK nationals referred to by the Foreign Office.
Meanwhile, The Times reported that the injured child, believed to be aged under 10, was related to one of the adults killed.
