Cracks in concrete found at Montreal's Place-des-Arts Metro station | CBC News

Deep cracks along the ceiling of a Montreal metro station's subterranean passageway have alarmed commuters, prompting the STM to close part of the passageway for safety. While stressing there's no structural danger, STM has initiated repairs and blocked off sections as a precaution. The Montreal transit agency is investigating the cracks' origins and impact while ensuring commuter safety throughout the process.