Cleveland city officials say a review of a deadly police chase last fall has found that 75 patrol officers violated department rules and regulations.
The November incident ended in 137 shots fired at a fleeing driver and passenger who were killed. The 19-mile chase wound through neighborhoods.
Mayor Frank Jackson and police Chief Michael McGrath planned to appear at a Friday morning news conference regarding the investigation into the pursuit.
Police have already announced punishments for 12 supervisors stemming from the chase. One supervisor was fired, two were demoted, and nine were suspended.
The county prosecutor is conducting a separate grand jury investigation into possible criminal wrongdoing in the chase.
The police union has said the shootings were justified because the driver tried to ram an officer.