Diplomatic contacts
Vance has been speaking almost daily with Qatari Prime Minister Sheikh Mohammed bin Abdulrahman Al Thani, Pakistan's Chief of Army Staff Field Marshal 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.
Vance and the mediators have discussed holding a working-level technical meeting between the US and Iran in the coming days, but no such meeting has been arranged, sources said.
Two weeks ago, Vance sent a letter to Mohsen Rezaei, secretary of Iran's Supreme National Security Council, proposing renewed direct negotiations. Iranian officials said the letter had generated positive momentum.