Crews are working on the issue, but trains will not move through the area until the issue is fixed, according to a service update on the GO website.

A disabled train near Union Station is causing mass train delays Monday, GO Transit says. TTC subway service downtown is also experiencing service disruptions.

A video has emerged of a person jumping onto a moving GO train on social media, prompting Metrolinx to urge commuters to not do the same.

Trains in and out of downtown Toronto have been hamstrung since Monday after a train partially came off the rails, forcing ...