Iran’s Supreme Leader Ayatollah Ali Khamenei has said there is no guarantee of a final nuclear deal after Iran and world powers reached a historic framework agreement last week. In his first comments since the agreement was reached, Khamenei declared all economic sanctions on Iran must be lifted on the day any final deal is signed, and said foreign inspectors would not be allowed into military sites.

Ayatollah Ali Khamenei: “If you ask me if I support or oppose the nuclear agreement, I neither support it nor oppose it, because nothing has happened yet. Nothing has been done yet. The whole issue lies in the details that they are meant to discuss one by one.”

Khamenei’s remarks may have been designed to placate hardliners opposed to the nuclear deal. Negotiators will seek to reach a final agreement before a June 30 deadline.