Police are investigating an attack by three teenage girls on a young man in Adelaide’s northern suburbs — the sickening incident caught on camera.

In the two-minute video, which was sent to Channel 9 News in Adelaide, the male victim, whose age is not known, can be seen lying on the ground as three girls punch and kick him repeatedly.

During the disgusting tirade, the girls — whose ages also are unknown — can be heard demanding the victim reveal his mobile phone password.

The man reportedly has a disability however, The Advertiser has not confirmed this.

media_camera Police are investigating a shocking attack on a reportedly disabled man by three teenage girls in Adelaide's northern suburbs. Picture: 9News/supplied

One of the attackers appears to be wearing a Playford International College uniform.

The education department confirmed the incident happened in a public place outside of school hours.

“The department is working with local schools to identify any students who may have been involved,” a spokesman said.

“While incidents of this nature are primarily a police matter, schools do discipline students who engage in violent or anti-social behaviour while travelling to or from school and they will be supported to take any necessary action.”

Police confirmed they are investigating the attack.

If you have any information that may assist, please call Crime Stoppers on 1800 333 000.