Iran's defiant protesters face mounted police as death toll from crackdown tops 300

Iran has deployed mounted police in a bid to contain more than seven weeks of protests sparked by the death in custody of Mahsa Amini, according to videos posted online. The clerical state has been rocked by a protest movement that erupted when Amini, 22, died after her arrest for allegedly breaking Iran's strict hijab dress rules for women.

Young women have led the way, removing and burning their head coverings, chanting anti-regime slogans and confronting security forces on the street despite a crackdown that has killed more than 300 people,...