Diplomatic contacts
Vance has spoken almost daily with Qatari Prime Minister Sheikh Mohammed bin Abdulrahman Al Thani, Pakistan's army chief Asim Munir and other mediators, according to the report. White House envoy Steve Witkoff and Trump's adviser and son-in-law Jared Kushner are also involved.
Two weeks ago, Vance sent a letter to Iran's Supreme National Security Council Secretary Mohsen Rezaei proposing renewed direct negotiations. Iranian officials said the letter had generated positive momentum.
The sides have also discussed holding a technical meeting in the coming days, though no meeting has been arranged. Sources involved in the mediation efforts described progress as very slow.