Impromptu celebrations broke out in cities across the country as the supreme leader's death was announced, followed by huge demonstrations of mourning and loyalty

People in Iran took to the streets as they mourned over the death of the country's supreme leader Ayatollah Ali Khamenei, who was killed in US-Israeli strikes.

Thousands of mourners gathered Sunday in the center of Iran's capital, while some celebrated elsewhere after the death of Iran's supreme leader,...