VANCOUVER -- A medical emergency disrupted SkyTrain service during the end of the evening commute on both the Expo and Millennium lines.

On the Expo Line, trains were turning back at Sapperton Station and TransLink said a bus bridge was transporting passengers to Braid and Lake City Way stations.

Trains were turning back at Lake City Way and Burquitlam SkyTrain stations on the Millennium Line, and a bus bridge was set up to transport passengers between those two stations.

The Canada Line was running normally and not affected.

Service resumed to normal shortly before 9:30 p.m.