'Incident' involving Chinook helicopter near CFB Petawawa

An emergency response is underway at Garrison Petawawa after a Chinook helicopter went into the Ottawa River just after midnight.

An emergency response is underway at Garrison Petawawa after a Chinook helicopter went into the Ottawa River just after midnight.

Garrison Petawawa confirming the incident involving the CH-147 Chinook helicopter happened around 12:10 a.m. Tuesday.  

A source tells CTV News there were four people on board, and that two people remain unaccounted for. The source says the two other crew members were transported to hospital with minor injuries.  

The Royal Canadian Air Force confirmed in a tweet that it is “aware of an incident involving a CH147 Chinook helicopter that was operating near the Ottawa River in the vicinity of Garrison Petawawa.”

First responders remain on scene and Ontario Provincial Police are assisting with the investigation. 

This is a breaking news story. More details to come.