Man charged after allegedly attacking 14-year-old boy over bullying

A Brisbane man has been charged after allegedly confronting his step-daughter's tormentor.

Seven News has obtained video of the moment the argument boiled over on Sunday.

Video shows the man yelling and pointing at the 14-year-old boy. Then he suddenly grabs the boy by the neck, appearing to strangle him.

Moments later the teen's mates decide to intervene.

"Get the f*** off him, get off him!" they can be heard yelling in the video.

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The boy complained to police and showed them the pictures.

It's understood the man told police the teenager has been bullying his step-daughter at school.

He's now been charged with assault occasioning bodily harm and will face court in two weeks.