A pepper-spray incident in a Metro car travelling between Champ-de-Mars and Berri stations shut down three lines of Montreal's Metro system during rush hour Wednesday morning, sending two people to hospital. The incident occurred shortly after 8 a.m., paralyzing Metro service on the Orange, Green and Yellow lines for about an hour. Around 9 a.m., the STM reported service was resuming on the Yellow and Green lines. "We wanted to prevent the pepper spray from spreading between the Green line, the Orange line and the Yellow line," Schnobb said. The Metro is already properly ventilated, he said, although the STM is currently improving the system along the Green line.
Source: CBC News January 09, 2019 13:30 UTC