Tehran, March 1 -- Large-scale mourning gatherings and protests erupted across several countries following the reported death of Iran's Supreme Leader Ayatollah Khamenei, with Shia communities taking to the streets in grief and anger, according to Press TV.

In Tehran and other Iranian cities, millions were reported to have mourned the Leader of the Islamic Republic of Iran. Crowds filled streets in Isfahan and Zanjan, while chants of "Death to America" and "Death to Israel" echoed at the Hazrat Masoumeh Shrine in Qom, Press TV reported.

In a symbolic gesture signalling retaliation, a red "flag of revenge" was raised over the dome of the Jamkaran Mosque, a site of religious significance in Iran. The flag is traditionally associated with ...