DUBAI, United Arab Emirates (AP) — President Donald Trump sent a letter to Iran’s Supreme Leader Ali Khamenei, seeking a new deal with Tehran to restrain its rapidly advancing nuclear program and replace the agreement he withdrew America from in his first term in office.

Iranian state media immediately picked up on Trump’s acknowledgment, given in excerpts from a Fox Business Channel interview aired on Friday, though there was no confirmation from Khamenei’s office that any letter had been received. The interview airs in full on Sunday.

It remained unclear how the 85-year-old supreme leader would react, given that former President Barack Obama had kept his letters to Khamenei secret ahead of the start of negotiations that led to Tehran’s 2015 deal with world powers.