"Mohammad Ali Kamfirouzi was released on bail from Fashafouyeh prison" south of Tehran, ILNA news agency and reformist daily Shargh reported.

Iranian media reported the lawyer's arrest on December 17 without specifying the charges against him.

The Islamic republic has been rocked by protests since Amini, a 22-year-old Iranian Kurd, died in custody on September 16 after her arrest for allegedly violating the country's dress code for women.

Two journalists, Niloufar Hamedi and Elaheh Mohammadi, have been arrested after covering Amini's death and its aftermath. They are both Kamfirouzi's clients.

Hamedi, who works at Shargh newspaper, was detained on September 20 after visiting the hospital where Amini had spent three days in a coma before her death.

Mohammadi, a journalist at another reformist publication, Ham Miham, was taken into custody on September 29 after she travelled to Amini's hometown of Saqez in Kurdistan province to report her funeral.

The two women were charged on November 8 with propaganda against the state and conspiring against national security, offences that carry capital punishment.

In December, Shargh published a list of nearly 40 journalists and photojournalists arrested in Iran in connection with the protests.

Iranian authorities say hundreds of people, including members of the security forces, have been killed since the unrest began, and thousands have been arrested.

The judiciary has confirmed 17 death sentences have been issued over the unrest.

Four have already been executed and two other inmates are on death row after their sentences were upheld by the Supreme Court. All six were convicted of attacks on security forces.

The reformist daily Etemad reported Friday the arrest of its journalist Mehdi Beikoghli who had published interviews with families of death row inmates.