Iran’s Supreme Leader Ayatollah Mojtaba Khamenei has rejected proposals to reduce tensions or agree to a ceasefire with the United States.

Axar.az reports, citing Reuters, that Khamenei’s stance on seeking revenge against the U.S. and Israel was “very tough and serious” during his first foreign policy session, a senior Iranian official said, without clarifying whether the leader attended the meeting in person.

The official, who requested anonymity, added that the supreme leader stated it was not “the right time for peace until the United States and Israel are brought to their knees, accept defeat, and pay compensation.”