Breaking: There are major issues with Sydney trains as mask wearing mandates for public transport nears the 5pm deadline.

Commuters across Sydney are reporting incidents with trains at Central Station, Town Hall and Wynyard.

Sydney Trains said some northern line services were experiencing delays, to to a train requiring repairs in a tunnel under the CBD between Wynyard and Town Hall.

From 5pm “face masks will be mandatory on public transport services in greater Sydney, Wollongong, Central Coast and Blue Mountains,” Sydney trains said.