A seventh person who was shot at the school died while being transported to the hospital.
Police “identified a secondary location believed to be connected to the incident, where two additional victims were located deceased in a residence”, the statement said.
Canadian media has reported that the shooter was female, but the RCMP statement did not include any details about the suspect.
“This was a rapidly evolving and dynamic situation, and the swift cooperation from the school, first responders, and the community played a critical role in our response,” the RCMP’s northern district commander Ken Floyd said in a statement.
“This has been an incredibly difficult and emotional day for our community,” he added.
Tumbler Ridge is more than 1100km north of Vancouver, British Columbia’s largest city.
- Agence France-Presse