At least 14 flights scheduled to operate out of Kabul airport were cancelled, with the status of other flights unclear, data from plane tracker Flightradar24 showed, following an internet shutdown in Afghanistan.
Growing chaos from the Taliban administration's order yesterday to cut internet and cell phone connections has hit banks, aid work, businesses, and the ability of Afghans to connect with family and friends.
It has also left many stranded in Afghanistan, with flights cancelled.
The Taliban administration has not explained the connectivity blackout. The United Nations has called for services to be restored.
"The cut in access has left Afghanistan almost completely cut off from the outside world, and risks inflicting significant harm on the Afghan people, including by threatening economic stability and exacerbating one of the world's worst humanitarian crises," the UN Assistance Mission in Afghanistan (UNAMA) said in a statement.
"The current blackout also constitutes a further restriction on access to information and freedom of expression in Afghanistan," it added.
The UN rights office called the blackout an "extremely serious human rights violation".
"Women and girls already excluded from public life are especially affected," it said on social media, calling for immediate reconnection.
It is the first time since the Taliban government won their insurgency in 2021 and imposed a strict version of Islamic law that communications have been shut down in the country.
"I came to work this morning but we cannot run any business because clients do not have access to online banking, transactions, cash withdrawal, or money authorisation," a bank worker in Kabul said.
"When there was internet, we never felt how important it was."
The post office was also unable to operate because it required bank services to carry out its work, staff said.
In the past, the Taliban have voiced concern about online pornography, and authorities cut fibre-optic links to some provinces in recent weeks, with officials citing morality concerns.
Out of the total 34 flights that were slated to fly in and out of Kabul today, four departures and ten arrivals were cancelled. Yesterday, ten flights out of 31 scheduled were called off.
The status of the remaining 21 flights from yesterday were labelled "unknown" on the Flightradar24 website. Many flights scheduled to operate out of other provincial airports, such as Herat and Kandahar, for yesterday and today were also labelled "unknown".
Mohammad Bashir, a representative of Kam Air, an Afghan domestic and international carrier, told the country's Tolo News channel that just one flight had run since the internet blackout.
He said that before a plane takes off, they must share flight information online with the destination airport, which was not now possible.
He hoped that operations could restart today.
"This is important for our fellow citizens who had transit flights and for those who were stranded trying to return. We must restart operations for their sake," Mr Bashir said.
