Police officers stand guard at a checkpoint near Serena Hotel, a possible venue for U.S. and Iran talks, in Islamabad, Pakistan, Saturday, April 25, 2026. (AP Photo/Anjum Naveed)

Paramilitary soldiers and police officers stand guard at a checkpoint on a barricaded road for the U.S. and Iran talks, in Islamabad, Pakistan, Saturday, April 25, 2026. (AP Photo/Anjum Naveed)

An Army soldier stands guard on an overhead bridge to ensure security for the U.S. and Iran talks, in Islamabad, Pakistan, Saturday, April 25, 2026. (AP Photo/Anjum Naveed)

FILE - In this Aug. 22, 2021 file photo provided by the U.S. Air Force, service members stand at a doorway as Afghan evacuees prepare to board an aircraft, Aug. 22, 2021, at Al Udeid Air Base, Qatar. (Airman 1st Class Kylie Barrow/U.S. Air Force via AP, File)

Police inspect a body recovered from the rumble of a residential building destroyed by a Russian strike, in Dnipro, Ukraine, Saturday, April 25, 2026. (AP Photo/Mykola Synelnykov)

Smoke rises after a Russian strike in Dnipro, Ukraine, Saturday, April 25, 2026. (AP Photo/Mykola Synelnykov)

En excavator clears the rubble of a residential building destroyed by a Russian strike on Dnipro, Ukraine, Saturday, April 25, 2026. (AP Photo/Mykola Synelnykov)

A man covered in thermal blanket stands in a yard of a residential building damaged by a Russian strike on Dnipro, Ukraine, Saturday, April 25, 2026. (AP Photo/Mykola Synelnykov)