Rouhani said negotiators from both sides have found new common ground in recent days, state run news agency IRNA reported.
His comments came as diplomats from the P5+1 group of world powers and Iran are in the Swiss city Lausanne to bridge gaps on Tehran’s nuclear issue, as the deadline to reach an agreement by the end of March is approaching.
He added that Iran is determined to clinch a deal ahead of the deadline.
All problems could be resolved but it is quite natural that the coming days or weeks will be very tough as taking the final step is always somewhat difficult, he said.
He expressed the hope that the nuclear talks would bear fruit and bring blessings for the Iranian people, the regional states and the entire world.