Nine police California officers arrested a black teenager and slammed him onto concrete while apparently arresting him for jaywalking.

Witnesses said a Stockton police officer ordered the teenager to sit down, but the teen instead continued walking toward a waiting bus, reported RT.

The officer grabbed the teen’s arm in attempt to stop him and then pulled out his baton after the teen “took off the cop’s hand off his arm.”

Bystander Edgar AvendaÃ±o begins recording at that point, showing the officer leaning hard on the teen, who is seated on a brick landscaping wall, and then striking the teen with his baton.

The officer then uses the baton to pin the teen’s ankles against his body as bystanders urge him to stop.

“It’s a f**cking kid!” a bystander yells. “Get off him, he’s been jaywalking. Leave him alone, he didn’t do anything wrong.”

The officer repeatedly orders the teen to stop resisting as the teen writhes in pain from having the baton pinned against his ankles.

The teen eventually sits up and tries to push the baton away from his legs, and the officer swings it twice at the teen’s face.

“Get the f*ck off of him, it’s a f*cking kid,” a bystander yells.

The officer backs up and orders the teen, who sits on the wall holding his injured jaw, to get on the ground.

Eight other officers begin arriving at that point, and they lift the teen up and walk him several feet away from the wall before slamming the teen onto the sidewalk.

Four officers then pile on top of the teen and pin him to the ground before handcuffing him, as the other four officer stand guard and attempt to block the AvendaÃ±o’s camera angle.

The officers pull the handcuffed teen to his feet, and the teen sobs as he’s led to a patrol car as the bystander continues yelling at officers.

“That’s a f*cking kid, he didn’t do nothing wrong,” she says. “Call his f*cking mama.”

Under California law, jaywalking is an infraction, not a misdemeanor, carrying fines up to $191.

Watch video of the incident posted online by Stockton Port City: