A Columbus Police Department officer was injured Wednesday morning when his assigned K9 attacked him while he was off duty, according to the department.

Police said the officer sustained injuries that required surgery. He is expected to recover.

The K9 had recently joined the department and was still undergoing training with his handler.

The dog died during the incident.

In a statement, the department said its immediate concern is the officer’s recovery and ensuring he receives the support he needs as he recovers from his injuries.

The circumstances surrounding the incident remain under investigation. No additional details have been released at this time.