The Ohio officer captured on video releasing his K-9 police dog to attack on an unarmed Black truck driver as he surrendered has been fired, CBS News reports.

Circleville Police Department officials announced the immediate termination of Ryan Speakman on Wednesday (July 26) over the mauling after a highway chase that also involved Ohio State troopers.

"Speakman's actions during the review of his canine apprehension of suspect Jadarrius Rose on July 4 show that Officer Speakman did not meet the standards and expectations we hold for our police officers," the department said, according to CBS News.

Police body camera footage shows Rose, 23, obeying the officers’ commands to kneel with his hands in the air. Officers at the traffic stop yelled at Speakman not to release the dog, but Speakman still unleashed the dog, which bit Rose’s arm and dragged him into the highway median, as Rose yelled, “Please, please get it off! Get it off!” One of the other officers yelled, “Get the dog off of him!”

Speakman was on paid administrative leave while the department’s Use of Force Review Board conducted an internal investigation.

But the police said the review board determined that the department's policy for the use of canines was followed during the apprehension of Rose.

“It’s important to understand that the Review Board is charged only with determining whether an employee’s actions in the use of force incident were within department policies and procedures,” Circleville police said in a statement, according to The Washington Post. That decision didn’t sit well with local advocates who have called for an external review.

Civil rights activists were outraged after the video was released. The police department “deserves admonishment” the Columbus, Ohio, chapter of the NAACP said in a statement to The Post, noting that the footage is reminiscent of “ horrible memories and images of the unleashing of dogs on civil rights activists” in the 1960s.

Ohio Gov. Mike DeWine blamed the incident on unequal levels of police training.

"Our big police departments, our big cities, certainly Ohio State Highway Patrol, they're excellently trained," DeWine told reporters Tuesday (July 25), according to CBS News. "When you get to smaller departments, they may not have the resources to have that training that's needed."

Meanwhile, the police union is defending Speakman. The Ohio Patrolmen's Benevolent Association said it filed a grievance Tuesday (July 25) to reinstate Speakman with back pay and restoration of any lost seniority.

The Ohio State Highway Patrol said the incident began when troopers attempted to stop Rose because of a missing mud flap on his commercial semi-truck. When Rose didn’t comply with orders to stop, Circleville Police Department officers were called for assistance.

Rose told a 911 dispatcher that he couldn’t understand why the officers were trying to stop him and why they had their guns drawn after he stopped the truck briefly before driving off, audio of Rose’s 911 calls shows, according to Columbus, Ohio station WSYX. Rose told the dispatcher, “I don’t feel safe.”

The pursuit came to an end after troopers placed spike strips in the roadway that blew out Rose's tires, forcing him to pull over on Route 23, according to the police.