This is the shocking moment a 15-year-old school girl was knifed repeatedly in the chest during a vicious brawl in a Brazilian school.
The girl was allegedly attacked with a penknife at St Joseph State College in Jaragua, central west Brazil, on Friday morning following a long-standing feud between the two.
The footage shows the moment the assailant launched her frenzied attack.
She raises the knife and strikes several times while other students scream in horror at the scale of the violence.
At the beginning of the film, the knife-wielding pupil is spotted holding the weapon and hiding it behind her back before apparently launching the onslaught.
The clash was broken up by a man who dragged the aggressor away from the conflict and held her in a classroom until police arrived.
The injured student appears defenceless during the attack as she is forced to the ground and tries to fend off the blows.
She was later pictured slumped on a chair being attended to by ambulance crew after the incident.
The vicious penknife stabbing occurred during a brawl at St Joseph State College in Jaragua, central west Brazil, on Friday
Her white school top was soaked with blood.
In another photo, a stained rose-coloured bra with a slash in the left cup shows where the knife reportedly hit the victim.
The schoolgirl was treated at hospital for a chest wound and has already been discharged according to Goiás Education, Culture and Sport Department.
The teen assailant has been detained in Jaragua jail, in a special cell for adolescents.
Detective Glenio Ricardo Alves da Costa, investigating the case, said the motive for the fight is still unclear.
He said: ‘The teenager who had the pocketknife did not say why she had attacked a colleague.
‘All she would say was that they had an old argument and had quarreled earlier. On [Friday] morning she decided to attack the girl with a pocketknife.’
Members of the school board will meet tomorrow to report on the case and to examine what measures should be taken.