Iran¡¯s new supreme leader gave a rare statement on Thursday, vowing not to give up the country¡¯s nuclear or missile technologies and signaling Tehran would keep control of the Strait of Hormuz.

The Islamic Republic will "guard¡± its "advanced technologies¡± like it does its own borders, Mojtaba Khamenei said in a written statement. It will "secure the Persian Gulf region and dismantle the hostile enemy¡¯s exploitation of this waterway,¡± he added, referring to the vital strait.

Khamenei replaced his father Ali, who was killed on the first day of the U.S.-Israel war against Iran on Feb. 28. He¡¯s not been seen or heard in public since his appointment, with several reports saying he was badly injured in the same airstrike on his father.