MONTREAL -- UPDATE, Tuesday, 9:30 a.m.: Service has resumed on the sections of both the Green and Orange lines that had earlier been shut down.


Parts of the Orange and Green lines of the Montreal metro system were shut down at the tail-end of the morning rush hour Tuesday.

The Green Line between Lionel-Groulx and Honore Beaugrand stations was closed due to what the STM says was "an unauthorized person on the tracks." Service is expected to resume around 9:20 a.m.

Meanwhile, the Orange Line was shut down from Lionel-Groulx to Henri-Bourassa because of an electrical equipment failure, according to the STM. Service on that stretch is also expected to resume around 9:30 a.m.