Three more Irish people have been evacuated from Kabul airport, the Department of Foreign Affairs has confirmed.

It brings to six the number of people evacuated from the Afghan capital, including aid worker Aoife MacManus from Co Meath, who arrived Islamabad in Pakistan yesterday.

There are still 35 Irish citizens and dependants seeking to leave the country.

The Department of Foreign Affairs said it "not in a position to disclose the specific details of those who have sought consular assistance".

While there is no Irish diplomatic or consular presence in Afghanistan, the department said the Irish Embassy in Abu Dhabi is in ongoing contact with European Union and other partners on the ground in Kabul.

They said they "hope to facilitate further evacuations in the coming days", but added that "the situation remains fluid and access to the airport remains extremely difficult".

There are a small number of Irish citizens who work for the United Nations and other international organisations who plan to stay in Afghanistan, the department added.

Among those staying is Mary-Ellen McGroarty, the World Food Programme country director for Afghanistan.

Speaking on RTÉ's Drivetime, the Donegal woman said she is going to stay in the country to continue her work and the WFP and UN are "making it a priority to stay".

A comprehensive humanitarian response is needed now, she insisted.

Ms McGroarty said: "The humanitarian situation is desperate and it's mounting.

"You know we're facing into a critical period in which, you know we have massive displacement to respond to, we have a drought to respond to, and also the impact of the conflict.

"In the provinces, you know, getting operations on your under across the provinces, there has been a number of meetings. You know we've been invited back to get the work resumed."

She added that they need to get operations resumed in Kabul also.

Ms McGroarty said: "In terms of our staff, we have a daily check in with all our 140 Afghan national across country.

"They are extremely worried, of course. It is an extremely scary time, but thankfully, them and all of their families are fine so far."

Earlier, a NATO official said that more than 18,000 people have been flown out of Kabul since the Taliban took over the city last Sunday.

There is growing concern for people in Afghanistan who helped the international coalition after an intelligence paper for the UN reported that the Taliban are hunting them down, house by house.

After routing government forces and taking over Kabul, the hardline Islamist movement's leaders have repeatedly vowed a complete amnesty as part of a well-crafted PR blitz.

But with thousands of people still trying to flee the capital aboard evacuation flights, the report for the United Nations confirmed the fears of many.

The Taliban have been conducting "targeted door-to-door visits" of people who worked with US and NATO forces, according to a confidential document by the UN's threat assessment consultants seen by AFP.