Goa, Aug. 9 -- Iran's Mehr news agency published a brief, undated 12-second video clip showing Supreme Leader Mojtaba Khamenei calmly conferring with advisers and officials. Marking the first video footage released of Mojtaba by state-linked media, the broadcast aims to dispel intense speculation surrounding his well-being following reports from Israeli media outlets that he was hospitalized in critical condition.

Mojtaba took office after his father, Ayatollah Ali Khamenei, was killed in US-Israeli military strikes on February 28. Having delivered no televised addresses and avoided all live public appearances since assuming leadership, his reliance on written communications has fueled persistent international doubts regarding his health...