Karachi. Violent protests and unrest have erupted in major Pakistani cities following the reported death of Iran's Supreme Leader, Ayatollah Ali Khamenei, in a joint US-Israel airstrike. At least 20 people were killed and dozens injured in clashes between security forces and demonstrators across the country on Sunday.The protests took a violent turn, particularly in areas with a majority Shia population, prompting security forces to use tear gas and rubber bullets to control the situation. Ten people died in violent clashes in Karachi, eight in Skardu, and two in the capital, Islamabad.Near the Red Zone in Islamabad, thousands of protesters...