Shooting into the crowd, without it being known whether there were dead or injured.
Iranian security forces opened fire on protesters in Mahsa Amini's hometown on Wednesday.
Thousands of people had attended a tribute ceremony at the end of the traditional 40-day mourning.
Defying a reinforced security device, a crowd of men and women had gathered around the grave of the young woman in the Aichi cemetery of Saghez, according to videos posted on social networks.
More than 1,000 people arrested since the protests began
This 22-year-old Iranian Kurd died on September 16, three days after her arrest in Tehran by the morality police who accused her of having violated the strict dress code of the Islamic Republic, imposing in particular the wearing of the veil for women.
His death sparked an unprecedented wave of protest, which continues across Iran.
Young women and schoolgirls took to the front line, many bareheaded, burning their veils and defying the security forces.
Iranian justice announced on Wednesday that it had charged more than 300 people, bringing the official number of charges linked to these demonstrations to more than a thousand.
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