The Jacques‑Cartier Bridge was partially shut down in both directions early Saturday morning as Montreal police carried out an operation and set up a safety perimeter. The closure began at approximately 8 a.m. on September 19, 2026, affecting traffic across the major crossing over the St. Lawrence River.
The Service de police de la Ville de Montréal (SPVM) posted a notice on its social‑media channels confirming that several officers were present at the site. The announcement indicated that a perimeter had been established as a precaution while the police activity was underway. The message did not provide further details about the nature of the operation or the duration of the closure.
Motorists encountering the partial closure were directed to use alternative routes, as the bridge remained open only to limited traffic. The SPVM’s communication emphasized the safety measures being taken, noting that the perimeter was intended to protect both the public and the officers involved in the operation. No incidents or arrests were reported in connection with the activity at the time of the notice.
Authorities have not released additional information about the operation or any follow‑up actions. The bridge is expected to resume normal two‑way flow once the police conclude their work and lift the safety perimeter. Commuters are advised to stay informed through official updates as the situation develops.