The Corner Brook Royal Newfoundland Constabulary is investigating the vandalism of school buses in the city.
A media report from the RNC says that operational patrol services responded to two reports of property damage involving school buses on Monday.
It was reported that two school buses were entered and fire extinguishers set off inside them.
This is the second time in a week that police have opened an investigation into this kind of an incident.
On March 8 police reported that parked school buses had also been entered sometime overnight and damaged by fire extinguishers being set off inside them.
The media report issued on those incidents says the reports came from two separate areas in close proximity to each other.