The United States still needs other nations to take Afghans who fled their homeland last year, a senior U.S. State Department official said on Friday, six months after Washington’s chaotic withdrawal as the hardline Islamist Taliban took control.

Washington has been urging its partners to take Afghans who do not qualify to be resettled in the United States, while those that do are facing a lengthy, complicated immigration process.

“We have a call with international colleagues, with about 60 countries every week, and we always remind them of the importance of them participating in this international effort,” the official told reporters on the condition of anonymity.

“We had an international effort in Afghanistan for 20 years. Now we have to have an international effort for resettlement for Afghans that are coming out of Afghanistan.”

There are thousands of Afghans in Europe, the Middle East and elsewhere who have been waiting months to be resettled.

The official made the remarks after visiting a transit facility for Afghans in the United Arab Emirates capital Abu Dhabi where rare protests by hundreds of Afghans held there erupted last month, criticising the months-long resettlement process and calling to be immediately sent to the United States.

The official said an apology was offered to Afghans in meetings at the facility for how long it had taken and that the pace to get those eligible to enter the United States would pick up once all people there were documented, which was expected to happen shortly.

There are about 12,000 Afghans held in UAE sites, of which several thousand will qualify to be resettled in the United States, the official said. It is unclear where those who do not will go.

Afghans later told Reuters they felt dejected after the visit by the official, who they said offered no clarity on their resettlement, including how much longer they will be there.

The official told media it was hoped that all Afghans in the UAE would be resettled by August but there was no way to be sure yet.

The United States has taken in 85,000 Afghans since the middle of last August when the West was withdrawing after two decades of war in Afghanistan and the collapse of Western-backed Republic.

Diplomats in Abu Dhabi say the prolonged resettlement was adding stress to already strained relations between the UAE and the United States, which are close security and economic partners.

The official said the hosting of the Afghans was an initiative of the UAE and that unlike with other nations there was no formal arrangement between Washington and the Gulf state.