Recent days have seen the U.S. and Iran exchange fire, despite a monthlong ceasefire which U.S. President Donald Trump maintains is “still in effect.”

U.S. Secretary of State Marco Rubio said the U.S. was anticipating an answer from Iran on a peace proposal. “We’re expecting a response from them today at some point,” Rubio told reporters on Friday. “I hope it’s a serious offer, I really do. … The hope is it’s something that can put us into a serious process of negotiation,” he said.

Trump has warned the U.S. would “knock [Iran] out a lot harder, and a lot more violently,” if Tehran does not accept a peace deal.

Iranian Foreign Minister Abbas Araghchi on Friday accused the U.S. of opting for a “reckless military adventure” every time a “diplomatic solution is on the table.”

“Is it a crude pressure tactic? Or the result of a spoiler once again duping POTUS into another quagmire?” he wrote on X. “Whatever the causes, outcome is the same: Iranians never bow to pressure.”