According to a congressional source, two refugee advocates, and a source familiar with the situation, the Taliban have suspended all flights of Afghan evacuees for the last two weeks over a dispute about how the airport in Kabul is handled and who is permitted on the evacuation aircraft.

Flights have ceased, according to a State Department official involved in evacuation operations.

Qatar Airways flights between Kabul and Doha that were chartered by the United States are at issue. According to a congressional official and a source familiar with the subject, the Taliban began requesting extra seats on planes for Taliban militants and sympathizers to leave the nation so they could work in other countries and bring badly needed money back to Afghanistan. The Afghan economy is in shambles, and millions of Afghans are running out of food as the weather cools.

The Taliban’s position is that because they rule the nation and the Qataris fly via their airspace and airport, they should be entitled to a set proportion of tickets on the flights.

According to a congressional source and a source familiar with the situation, the Taliban were utilizing the seats to move migrant laborers out of Afghanistan to Qatar, Saudi Arabia, and other countries in search of employment until the flights were halted. While Taliban militants assigned seats, it’s unclear if those that left were committed Taliban fighters, supporters, civilians, or a mix of the three groups.

The State Department claims that more than 74,000 Afghans fled to the United States in August’s Operation Allies Welcome pullout. Tens of thousands of Afghans, who include those who worked for the US military and Western organizations, still attempt to flee their country to live in the United States.