Protesters in Iran have tried to break into a local government building in the southern province of Fars, on a fourth day of demonstrations sparked by a currency collapse.
Officials said three police officers were injured and four people arrested in the city of Fasa.
Confrontations were also reported in the western provinces of Hamedan and Lorestan.
The authorities in Tehran had declared Wednesday a bank holiday - in an apparent effort to quell the unrest.
In video that emerged on social media and was verified by the BBC, a crowd is filmed breaking the gate of the governor's office in Fasa. Then, in another post, security men are seen shooting in response. Clouds of tear gas rise in front of shuttered shops.
Across the country, schools, universities and public institutions were closed because of the last-minute public holiday announced by the Iranian government. It was ostensibly to save energy due to cold weather but was perceived by many as an attempt to contain the protests.
The protests began in Tehran on Sunday among shopkeepers angered by another sharp fall in the value of the Iranian currency against the US dollar on the open market. By Tuesday, university students joined, spreading to several cities, with chants against the regime.
These protests mark some of the most widespread unrest since the 2022 uprising following the death of Mahsa Amini, but they have not reached the same scale. To prevent escalation, tight security has been reported in Tehran.
President Masoud Pezeshkian stated that the government would listen to the protesters' legitimate demands, while the prosecutor general warned of a decisive response to any attempts at creating instability.
