Protests against the Iranian government have spread to at least 17 of Iran's 31 provinces, according to a BBC Verify and BBC Persian analysis, marking the most significant challenge to the country's clerical establishment since 2022. The unrest was sparked on December 28 by a sharp devaluation of the Iranian currency against the U.S. dollar and other major foreign currencies, initially erupting in Tehran before spreading nationwide.

Verified video footage from the past 10 days shows anti-government demonstrations and gatherings in over 50 towns and cities, including regions previously considered strongholds of support for the state. The BBC analysis, based on over 100 geolocated and verified videos, suggests the actual number of protests is likely higher, with reports indicating demonstrations in an additional 11 provinces.

The protests reflect widespread discontent over economic conditions and government policies. The currency devaluation has exacerbated existing economic hardships for many Iranians, contributing to rising inflation and unemployment. The government has yet to issue a comprehensive response to the protests, but state media has acknowledged the economic grievances while accusing foreign entities of instigating unrest.

Analysts suggest the protests pose a considerable challenge to the Iranian government, which has faced similar demonstrations in recent years. The scale and geographic spread of the current unrest, however, indicate a deeper level of public dissatisfaction. The government's response will likely involve a combination of addressing economic concerns and suppressing dissent, a strategy employed in the past.

The situation remains fluid, and it is unclear how the protests will evolve in the coming days and weeks. The government's actions, as well as the response from the international community, will likely play a crucial role in shaping the outcome of the current unrest.