Toronto police and fire units say a fire broke out on a northbound subway train car at the Sheppard-Yonge station Sunday afternoon.
Emergency responders say they responded to reports of an e-bike on fire around 3 p.m.
The bike was on the first car of a train heading northbound, police said.
According to Toronto fire, the flames were put out, but smoke and one fire-related injury caused part of the line to shut down.
The station was evacuated for the safety of subway riders.
There was a brief interruption in service between Finch and Lawrence while the situation was being resolved, officials said.
Delays are expected in the area, but shuttle buses are available along the route.