The United States still has not seen or verified Iranian Ayatollah Mojtaba Khamenei’s current condition, now more than two weeks after he was named as the successor to his father, the late Ayatollah Ali Khamenei, President Donald Trump said on Monday.

Mojtaba Khamenei is believed to have been severely injured during the initial attacks in the U.S.-Israel-Iran war that killed his father, but he has not been seen publicly since then, with broadcasters reading statements purportedly from him instead of direct addresses to the masses.