The United States and Iran have held separate discussions with mediators as diplomatic efforts intensify to end the seven-month war between the two countries.
Officials from both sides spoke with mediators on Monday, with further negotiations expected to focus on an amended version of a seven-day ceasefire proposal put forward by Iran on the sidelines of the United Nations General Assembly last week.
The conflict began in late February following US and Israeli attacks on Iran and has resulted in thousands of deaths. The fighting has also disrupted global energy markets, with the Strait of Hormuz remaining a major point of contention.
The US and Iran previously reached ceasefire agreements through mediated talks in April and June, but both arrangements subsequently collapsed.
Iranian Foreign Minister Abbas Araqchi, who remains in New York following the UN General Assembly, says Tehran is awaiting Washington's response to its latest proposal and its conditions for restoring maritime traffic through the Strait of Hormuz.
“If the Americans claim they are seeking an agreement or a peaceful solution, we have presented that solution,” Araqchi said, according to Iran's state news agency IRNA.
The Iranian proposal calls for an end to hostilities in Iran and Lebanon, the unfreezing of billions of dollars in Iranian assets, the lifting of sanctions on Iranian oil and an end to the US blockade of Iranian ports.
In return, Iran would allow the Strait of Hormuz to reopen and resume negotiations with Washington over its nuclear programme.
US President Donald Trump said American officials had spoken with mediators on Monday, although he did not provide further details.
Trump previously rejected Iran's proposal, but has indicated that US negotiators could hold further discussions with Tehran this week.
Araqchi said Iran had not received a formal rejection through the mediators and was waiting for Washington to communicate its definitive position before deciding on its next steps.
He has maintained that reopening the Strait of Hormuz would depend on Iran's conditions being met, while insisting that the conflict can only be resolved through negotiations.