Following a five-month break, Iran and world powers on Monday kicked off talks in Vienna in a last-ditch attempt to restore the 2015 nuclear accord.
Diplomats of Iran, China, France, Germany, Russia, and the UK convened at the luxury hotel Palais Coburg at 1300GMT amid dim expectations for an agreement.
Messages will be communicated to US diplomats as the Iranian side again refused to hold direct talks since the US is no longer party to the nuclear deal.
Ali Bagheri Kani, Iran's chief nuclear negotiator, said his country had what he labeled a "serious will” to ensure the lifting of US sanctions during the new round of Vienna talks, according to Iran's official IRNA news agency.
Kani added that this round of talks will focus on the removal of sanctions, so a specified time could not be predicted for the seventh round of negotiations in Vienna.
He said the Monday meeting would focus on discussing the outlook of this round of talks, with a timetable to be announced later.