An increasing number of attacks on Auckland Transport staff has prompted a stern message from the Mayor

This lockdown has seen 16-reported incidents involving abuse or aggression towards staff.

That includes an assault on a bus driver by three youths.

Mayor Phil Goff has slammed the behaviour, saying workers shouldn't be subjected to physical violence.

He's urging people to contact Police if they witness any such behaviour in their community.

Auckland Transport is also working closely with Police to apprehend any alleged offenders.