Iran has submitted its formal reply to world powers on a package aimed at allaying fears over Tehran's nuclear program.
Iran's top nuclear negotiator, Ali Larijani, handed over the written response to envoys in Tehran representing the five permanent members of the United Nations Security Council plus Germany.
Details of the response were not immediately available.
The world powers have offered incentives in return for an end to Iran's uranium-enrichment program.
Iran's supreme leader, Ayatollah Ali Khamenei, said Monday that his country has made its decision, and will continue along the path toward nuclear energy. He denied once again that Iran has any plans to develop nuclear weapons.