Security sources in Pakistan have indicated that new talks between the United States and Iran may begin before Friday. Two unnamed sources told Al Jazeera that several recent developments suggest this possibility. A US C-17 Globemaster transport aircraft reportedly landed at Nur Khan Airbase in Rawalpindi, near Islamabad, while roads leading to the capital’s Red Zone were temporarily closed, signaling tight security measures.

The sources also said that guests were being evacuated from Islamabad’s Serena and Marriott hotels, and no new bookings were being accepted until Friday. The first round of US-Iran discussions had taken place at the Serena Hotel on April 11. Analysts believe these preparations point to renewed diplomatic activity, although no official schedule for the talks has yet been announced.

The developments suggest that Pakistan may again serve as a venue for sensitive diplomatic engagement between Washington and Tehran, pending formal confirmation from either side.