Iran's supreme leader vows killers of father 'will be held accountable'

Iran's supreme leader Mojtaba Khamenei vowed to hold accountable those responsible for his father Ali Khamenei's killing in a US-Israeli strike. He emphasized avenging 'all the martyrs' as a 'necessary national demand' following funeral ceremonies in Mashhad. The US imposed sanctions on Iran's new leader and others, straining the recent ceasefire agreement.