An Iranian delegation will hold talks with Pakistani mediators but not directly with US representatives, a US source told CNN.
A senior Iranian source tells Al Jazeera that no US-Iran talks will take place during the visit, contradicting earlier expectations.
Al Jazeera's correspondent Ali Hashem confirms that no US-Iran talks will take place during the visit.
The New York Times reports that Pakistani security officials informed journalists of the delegation's arrival tonight.
A US source told CNN that the Iranian delegation will only talk with Pakistani mediators and will not meet directly with US representatives.
