MONTREAL An investigation is underway into a violent altercation between several metro officers, a police officer and a Black woman in the Jean-Talon metro this weekend. A video of the incident from Saturday evening was shared widely on Twitter. It shows a woman screaming repeatedly as she s pinned down by what appear to be at least two metro police officers and then a police officer. Comment sommes nous sensés se sentir en sécurité ? pic.twitter.com/UuO7UTcMav Big Dee (@whoisdeelan) April 18, 2021 Montreal s transit agency said the incident escalated when the woman bit a transit officer and broke the skin.