Authorities of the Islamic Emirate have not yet commented on the suspension.
The UNHCR also voiced alarm at the scale and speed of returns. Babar Baloch, spokesperson for the agency, said more than 50,000 Afghans crossed back from...
Migrants are being pulled off the streets without notice, loaded onto buses, and abandoned at the Afghan border, Khalilzad said.
Afghan authorities in Herat and Nimroz have reported growing pressure on local services and have appealed for greater international support to assist returnees.