Protests erupted in Tehran and other Iranian cities Thursday evening, with demonstrators calling for the overthrow of Supreme Leader Ayatollah Ali Khamenei amid growing discontent over the country's economic situation. Videos verified by BBC Persian showed large crowds marching in Tehran and Mashhad, in what observers are calling the largest display of opposition to the clerical establishment in years.

The demonstrations, which remained peaceful and were not dispersed by security forces initially, followed 12 consecutive days of unrest triggered by the collapse of the Iranian currency. According to the Human Rights Activist News Agency (HRANA), the protests have spread to over 100 cities and towns across all 31 of Iran's provinces. HRANA reported that at least 34 protesters, including five children, and eight security personnel have died during the unrest.

Footage from the protests captured demonstrators chanting slogans in support of Reza Pahlavi, the exiled son of the late former Shah, who has urged his supporters to take to the streets.

The protests coincide with increasing economic hardship in Iran, exacerbated by international sanctions and internal economic policies. The Iranian currency has plummeted in value, leading to rising inflation and widespread economic anxiety.

Following the demonstrations, a monitoring group reported a nationwide internet blackout. The Iranian government has not yet issued a statement regarding the protests or the reported internet shutdown. The situation remains fluid, and further developments are expected in the coming days.