PARIS: Iranian security forces made dozens of arrests Saturday as protesters in the southeast commemorated the killing of dozens of demonstrators in the region one year ago, human rights groups said. At least 104 people were killed, according to the Norway-based Iran Human Rights NGO, in what is known as “Bloody Friday,” when security forces fired on a protest in Zahedan, the main city of Sistan-Baluchistan province, on September 30 last year. The violence marked the single deadliest day of months-long protests that erupted in Iran last year. The Zahedan protests were triggered by reports a teenage girl had been raped in custody by a police commander and took place in parallel to nationwide demonstrations sparked by the September 16 death of Mahsa Amini, a 22-year-old Iranian Kurd, after her arrest in Tehran for an alleged breach of the country’s dress code. Activists have long complained that the ethnic Baluch population in Sistan-Baluchistan, who adhere to Sunni Islam not the Shiite branch of the faith dominant in Iran, suffer from discrimination. Security forces fired tear gas and live rounds for a second straight day to disperse protesters who turned out in Zahedan to mark the anniversary, the Baluch-focused rights group Haalvsh said. Throughout Saturday, businesses in Zahedan and other towns observed a general strike, it said, adding that “dozens” of people had been arrested. The group posted footage with the sound of gunfire clearly audible amid a heavy security presence in the city. Security forces had already used live fire to disperse protesters on Friday, wounding at least 25 people, including children, according to the Baloch Activists Campaign group. There was no immediate word on any casualties in Saturday’s unrest. Even as the protest movement dwindled elsewhere in Iran, residents of Zahedan have held regular Friday protests throughout the past 12 months. The city’s Friday prayer leader, Molavi Abdolhamid, who has been outspoken in his support of the protests over the past year, issued a new call for justice over “Bloody Friday,” telling the faithful to “know your rights.” Footage posted on social media on Friday showed chaotic scenes as hospitals filled with injured, including children, while people on the streets sought to escape to safety amid the sound of heavy gunfire. IHR said that the protests in Zahedan and other cities were again “brutally crushed” with authorities using “live ammunition, pellet bullets and tear gas against unarmed protesters.” The executive director of the New York-based Center for Human Rights in Iran, Hadi Ghaemi, condemned the “horrifying display of indiscriminate violence... as the state attempts to suppress peaceful demonstrations.” “It is imperative for the international community to shine a spotlight on this violence and to hold Iranian officials accountable in international courts, invoking the principle of international jurisdiction,” he said.