Tehran on Monday said it is “possible” to reach an agreement on the two issues of Iran-US prisoners’ release and the Vienna talks to restore the 2015 nuclear deal. “They are two different paths, but if the other party (the US) has the determination, there is the possibility that we reach a reliable and lasting agreement in both of them in the shortest time,” foreign ministry spokesman Saeed Khatibzadeh said during his weekly press conference. Khatibzadeh’s comments came in reaction to remarks made by the US envoy for Iran, Robert Malley, who on Sunday said it is unlikely that Washington would strike an agreement unless Tehran releases four US citizens. “Iran has not accepted any precondition from day one of the negotiations,” Khatibzadeh said. He added that “the negotiations are complicated enough, and should not get more complex with complicated remarks”. The four US citizens held in Iran are Iranian-American businessman Siamak Namazi, 50, and his father Baquer, 85, as well as environmentalist Morad Tahbaz, 66, and businessman Emad Sharqi, 57. “It is a humanitarian issue and it was on our agenda, both before these negotiations and during them,” Khatibzadeh said, referred to the situation of Iranian nationals kept in US.