Iran is examining a set of proposals put forward by mediators concerning the future of its nuclear programme, amid signs that diplomatic negotiations with the United States could resume as efforts continue to contain the conflict and prevent further military escalation.

The New York Times reported, citing five officials familiar with the negotiations, including American and Iranian sources, that Tehran's willingness to reconsider the proposals marks a potential shift after weeks of refusing to make concessions. The development could indicate progress in Qatar-led mediation efforts aimed at preventing a wider confrontation.

According to the officials, the proposals were described as concrete initiatives, although their specific terms have not been disclosed.

Qatar stepped up its diplomatic engagement over the past week, participating in two rounds of discussions in Tehran and hosting a third round in Doha. Two officials also confirmed that Qatari representatives had recently held talks with Iranian officials in Armenia as part of broader efforts to revive diplomatic channels.

Meanwhile, three officials said US Vice President JD Vance had emerged as a prominent supporter of Qatar's efforts to prevent military escalation.

Vance also appeared to be distancing himself from President Donald Trump, linking the war's consequences to the significant setbacks suffered by Republicans in this week's midterm elections.

Last month, Vance sent a message to Mohsen Rezaei, head of Iran's Supreme National Security Council, proposing direct peace negotiations that would include discussions on Iran's nuclear programme.

Rezaei described the message as a sign of a change in Washington's approach towards Tehran, calling it evidence of the "strength and victory of the Iranian people".