Portions of three Montreal STM metro lines have been shut down due to the presence of smoke.\nUPDATE: Normal metro service has resumed on all 3 lines.\nEARLIER: The STM posted notice of the shutdowns to the Twitter accounts of the green, orange, and yellow lines.\nThe blue line has not been affected.\nIt is likely but unconfirmed that the smoke is in the vicinity of Berri-UQAM station, the transfer station of the three shutdown lines.\nIt is also the busiest station in the Montreal metro network.\nShutdown GREEN line between L-Groulx and Viau. Presence of smoke. Service expected to resume at 14:30. #stminfo B— Ligne Verte (@stm_Verte) August 21, 2019\nShutdown ORANGE line between L-Groulx and H-Bourassa. Presence of smoke. Service expected to resume at 14:30. #stminfo T— Ligne Orange (@stm_Orange) August 21, 2019\nShutdown YELLOW line between Longueuil and Berri-UQAM. Presence of smoke. Service expected to resume at 14:30. #stminfo K— Ligne Jaune (@stm_Jaune) August 21, 2019\nReports from passengers online indicate that the power has been shut off on the rails.\n@stminfo now the power has been shut off— Fredy Iuni (@FredyMIuni) August 21, 2019\nThis is breaking news. Stay tuned for updates.