Three Iranian regime security forces were killed on Monday 19 February 2018 in clashes with protesters in northern Tehran, according to the police spokesman Saeed Montazer al-Mahdi based on a Reuters report.
The clashes were between security forces and dervishes of the Gonabadi denomination who had gathered in front of a police station, demanding the release of some members of their Sufi religious denomination, according to video footage posted on social media.