Sydney rail commuters were stuck on broken-down trains in tunnels for more than an hour after overhead wire damage between Town Hall and Wynyard stations during peak hour yesterday.

This damage caused power issues, has stopped all trains travelling away from the city between Central and North Sydney on the T1 North Shore and Northern lines since 5.30pm.

Commuters were safely evacuated from these trains, but they had to walk through tunnels back to their nearest station.