Iran’s response to a US peace proposal aimed at ending the war in the Middle East is expected on Friday, reports Reuters, citing a source briefed on the matter.

US President Donald Trump and top White House officials have been told via interlocutors to expect Iran’s counter-proposal then, the source said.

Iran has expressed willingness to talk about certain things in an exchange of messages, US Secretary of State Marco Rubio told reporters after a G7 meeting in France on Friday.

“We’re waiting for further clarification about who it is that we would be talking to, what we would be talking about, and when will we be talking,” Rubio said. “It could happen in any moment. It could happen today. Could happen tomorrow.” An Iranian official told Reuters on Thursday that senior officials had reviewed the proposal and felt it served only US and Israeli interests. But the official said diplomacy had not ended.