Montreal anti-police protest turns violent MONTREAL, March 16 (UPI) -- Montreal's annual march against police brutality led to stone-throwing, tear gas clouds and more than 100 arrests, police said. About 2,000 mostly young people took part in the Thursday night march, chanting and carrying placards -- many wearing masks or balaclavas, The (Montreal) Gazette reported Friday. Police stayed on side streets but when six officers in riot gear appeared on the march route, protesters began throwing rocks at them, the report said. In response, police fired two "flash-bang" stun grenades and the crowd panicked and began running, the report said. Store windows were smashed and a police car was flipped over as police fired tear gas and advanced in a line, with officers banging batons on their riot shields, the Gazette said. One protester who was wearing ski goggles, was struck on the forehead by a tear gas canister and received superficial burns, the report said. By the end of the night, police said, more than 100 people had been arrested and two people had injuries that required hospital care.