Protests against the Iranian government have spread to at least 17 of the country's 31 provinces, according to an analysis by BBC Verify and BBC Persian. The demonstrations, which began on December 28, represent the most significant challenge to Iran's clerical establishment since 2022.

The BBC's analysis is based on verified video footage, suggesting the actual number of protests is likely higher, with reports indicating unrest in an additional 11 provinces. The protests initially erupted in Tehran following a sharp devaluation of the Iranian currency against the U.S. dollar and other major foreign currencies.

Verified footage from the past 10 days shows anti-government demonstrations and gatherings in over 50 towns and cities, including regions previously considered loyal to the state. More than 100 videos were geolocated and checked for publication date, illustrating the scale of the unrest across major Iranian cities.

The currency devaluation is seen as a symptom of broader economic challenges facing Iran, including international sanctions and government economic policies. These factors have contributed to rising inflation and unemployment, fueling public discontent.

While Iranian authorities have not yet released official statements regarding the extent of the protests, state media has acknowledged some demonstrations while attributing them to economic grievances. The government's response to the protests remains unclear, but previous instances of unrest have been met with varying degrees of force. The situation is ongoing, and further developments are expected as the protests continue.