Iranian journalist, Nilufar Hamedi, was on Friday arrested in Tehran for being the first to publicise the case of Mahsa Amini, who died in police custody a week ago.
According to critics, the police used violence against Amini.
The police rejected the accusations.
Since her death, thousands of people have been demonstrating across the country against the repressive policies of the government.
Hamedi is a journalist from the reform newspaper Shargh
The paper reported that two other reporters, a photographer and a political activist were arrested in connection with the protests.
They were said to be at the notorious Evin prison in Tehran.
Amini, 22, was arrested by morality police because her outfit did not adhere to the country’s standards for women’s attire.
