The Iranian regime sentenced Narges Mohammadi, the jailed human rights activist who received the 2023 Nobel Peace Prize, to 15 more months in prison, her family said on Monday.

The news came a day after Iran released the journalists Niloufar Hamedi and Elaheh Mohammadi on bail while they appeal their sentences, according to state media. They had been jailed for their coverage of a young woman whose death sparked a nationwide protest movement that challenged the country’s system of authoritarian clerical rule. Prosecutors filed a new complaint against the women on Monday.

The journalists helped break the story of Mahsa Amini, 22, who died in the custody of Iran’s morality police in September 2022 after being arrested on charges of violating Iran’s religiously conservative dress code.

Ms. Hamedi, 31, reported for the Iranian daily newspaper Shargh from the hospital where the young woman lay dying and shared a photo of her grieving relatives that went viral on social media. She was arrested days after Ms. Amini’s death, and Ms. Mohammadi, who had covered her funeral for the newspaper Hammihan, was arrested a week after that, as protests swept Iran.