Iranian Foreign Minister Abbas Araqchi said on Friday there was potential for progess in nuclear negotiations with the U.S. after mediator Oman made several proposals, adding that the talks were complicated and more discussions were needed.

Omani foreign minister says latest round of indirect negotiations between Iran, US has concluded in Rome - Anadolu Ajansı

The fifth round of nuclear talks between the U.S. and Iran in Rome ended Friday with "some but not conclusive progress," according to Oman's Foreign Minister Badr al-Busaidi, who is mediating between the parties.