Montreal's REM light-rail network down during morning rush hour

An aerial view of the REM train travelling from Ile Bigras on the Deux Montagne line in Laval, Que., on Friday, Dec. 12, 2025. THE CANADIAN PRESS/Christinne Muschi

MONTREAL - A technical problem with trains running on Montreal's light-rail network led to a full shutdown for an hour at the end of the morning rush hour Tuesday, causing delays for commuters.

A spokesperson for the operator of the REM — Réseau express métropolitain — said the technical issue occurred on two trains, both of which needed to be taken out of service.

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