CLEVELAND -- Cleveland Police Chief Michael McGrath on Friday revealed that 75 of his officers will be disciplined for involvement in the November police chase that ended with two unarmed people shot dead.

The officers played a role in the pursuit, but are not among the 13 who had an active role in the chase's climax -- a volley of 137 bullets that killed Timothy Russell and Malissa Williams after they led police on a chaotic 23-minute chase.

Of the 75 officers facing discipline for violating police protocol, 19 will be referred to Public Safety Director Martin Flask for disciplinary hearings and could face temporary suspension, McGrath said during a news conference.

McGrath joined Mayor Frank Jackson, who said the city remains committed to being transparent about the investigation and that the officers involved in the chase will be held accountable.

The officers are charged with varying offenses ranging from engaging in a chase without permission to providing false information on duty reports, McGrath said, adding that none of the officers in question face termination.

The fatal chase began when two officers near the Justice Center in downtown Cleveland reported they heard a gunshot come from Russell's passing car.

Russell, with Williams in the passenger seat, fled the scene and led police on a full-tilt pursuit through downtown, Bratenahl and East Cleveland.

"When those officers started their tour of duty that evening, they started it with good intentions, and they had no intentions to get involved in this," McGrath said. "But then things happened...this is a tragedy."

More than 100 of the 277 officers on duty that night had some involvement in the chase, McGrath said.

During the press conference, McGrath said 74 officers face discipline. Soon after, the mayor's office contacted The Plain Dealer to say the number is 75.

The 75th officer has transferred to the Division of Fire since the chase and is no longer with the police department, according to a spokesman for the mayor

In June, the department fired one police supervisor, demoted two and disciplined nine others for their administrative roles in the chase.

The actions of the 13 officers who shot to death Russell and Williams are still under investigation, McGrath said.

That review is being conducted by Cuyahoga County Prosecutor Timothy McGinty.

The department could see changes to policy and training once all investigations are complete, McGrath said.

Police union chief Jeff Folmer, who attended the news conference, said department reform "has to start at the chief's level."

"Let's learn from this, and let's move forward," Follmer said.