Mourners in Iran have been shot at by security forces, according to activists, during a commemoration for an activist killed during anti-government protests. A video shared by BBC allegedly shows Iranian militias firing on a procession marking the 40th day since Hadis Najafi, a 22-year-old TikToker, who shot dead during a demonstration in Karaj, close to Tehran. The New Arab cannot independently verify the video. Police blocked off the road to thousands of mourners on Thursday trying to reach the Behesht Sakineh cemetery where Najafi is buried, following a call on social media from Najafi’s si…