Police are investigating after a rock was thrown through a bus window in Napier, narrowly missing two people.
The incident took place just before 2pm on Friday, when the bus was travelling south along Willowbank Avenue towards Meeanee.
"The rock narrowly missed the driver, and a passenger in the bus, before falling onto the passenger's lap," Senior Sergeant Kevin Stewart said in a statement.
He said the bus was full of teenagers at the time.
"While we understand there may have been no malicious intent, it is very lucky that no one was hurt, as there could have been incredibly serious consequences."
Snr Sgt Stewart said the driver was able to slow the bus down and bring it to a stop near the Meeanee shops.
A new bus was then organised to continue the journey.
Hastings Area Commander Inspector Lincoln Sycamore told Newshub the bus driver "did exactly the right thing".
"I really want to compliment the bus driver for the action that they took, upon the rock striking the windscreen of the bus," he said.
"He's done exactly the right thing, and everyone has been safely transferred onto another bus."
Insp Sycamore acknowledged the incident would have been "really scary" for those on board.
"I can't imagine the noise it would have made."
"Police are conducting enquiries to identify and locate those involved, and what occurred," police said.
Those who threw the rock, or saw someone do it, are being urged to contact police on 105 or online via https://www.police.govt.nz/use-105 using 'Update report' and referencing file number: 240406/6764.