Iran said Friday it seeks a "real and fair" agreement on its nuclear programme, as the United States signalled a willingness to compromise ahead of high-stakes weekend talks.

The longtime adversaries are set to meet on Saturday in Oman weeks after a letter to Supreme Leader Ayatollah Ali Khamenei by US President Donald Trump, who sought diplomacy but warned of possible military action if Iran refuses.

"Far from putting up a show and merely talking in front of the cameras, Tehran is seeking a real and fair agreement, important and implementable proposals are ready," Khamenei adviser Ali Shamkhani posted on X.

He confirmed that Foreign Minister Abbas Araghchi was heading to Oman "with full authority for indirect negotiations with America", adding that if Washington showed goodwill, the path forward would be "smooth".

Steve Witkoff, the Trump friend who serves as his globe-trotting envoy, sounded a note of flexibility before he meets Araghchi in Oman.

Witkoff told the Wall Street Journal that "our position today" starts with demanding that Iran completely dismantle........

© Al Monitor