A 15-year-old California girl is recovering after being body slammed by a boy in a fight over a phone, causing her to hit her head and suffer a seizure.

The incident is believe to have occurred on Sunday outside a house in Vallejo and was captured on video.

The footage shows the girl, identified as Holly Wrixon, arguing with the boy, Morgan Johnson, on a driveway surrounded by other teenagers.

Fight: The video of the argument between Holly Wrixon and Morgan Johnson culminates in Johnson grabbing the girl and throwing her to the ground

Johnson is seen grabbing her in a headlock position, spinning her around and then slamming her down on her head

In the video there is a loud thud when Wrixon hits the ground. She was briefly knocked out

Wrixon is seen trying to slap Johnson, and he initially tries to stop her, but suddenly just grabs Wrixon and slams her to the ground.

The video, which was uploaded to YouTube multiple times, shows Wrixon hitting the concrete hard, with Johnson on top of her.

She is briefly knocked out by the heavy blow. A friend of Wrixon's, also female, then starts attacking Johnson for what he did, screaming and hitting him.

Johnson seems nonplussed afterward, and casually picks up his baseball hat that fell off during the scuffle.

Many viewers of the video online have come to Johnson's defense, claiming Wrixon was the aggressor and was 'asking for it'.

A friend attends to Holly Wrixon after she was slammed to the ground and lost consciousness

Hit: Wrixon has defended herself online after some viewers of the video commented that she was the aggressor of the fight and deserved what happened

Wrixon initially posted the video online, but later removed the clip. She said on Twitter that she did so at the request of her father.

Also on Twitter Wrixon confirmed that she suffered a seizure following the body slam and was transported to hospital.

She also shut down reports that the reason for the seizure was that she suffers from epilepsy, saying this isn't true.

It's believe that police were contacted after the video appeared online. However it is unclear whether Johnson will face any charges.