A Cityride bus window was smashed yesterday when a rock was thrown at it in Rotorua.
Bay of Plenty Regional Council operates the bus services and confirmed a rock had smashed the window of a bus travelling along Sunset Rd about 6.20pm last night.
A regional council spokeswoman said the driver would file an incident report on the event.
There were no passengers on the bus at the time.
A police spokeswoman said they had not been called to the incident but wished to reiterate that throwing objects at vehicles posed a serious risk.