UPDATE | SIU investigation in Pelham

The SIU says they have identified 12 witness officers they they want to speak to  in connection with the shooting incident in

Pelham.

The province's police watchdog confirms it happened during an altercation between two officers who were investigating a collision.
     
The injured officer, who has 28 years of experience on the force, was taken to a local hospital, then airlifted to a facility in Hamilton in critical condition.
     
The officer's condition has since been upgraded to stable.

 The incident is also being investgated by the OPP.