Police in the northern province of Quang Ninh are investigating a 19-year-old student's involvement in a case where a clip showing an attack on another girl was posted online last week.
According to police, Nguyen Hai Yen from Cam Pha Town, has been accused of "causing public disorder," "humiliating others," and "deliberately injuring" others.
In the clip posted on YouTube, Yen and five other girls beat Nguyen Thi Nham, an eleventh-grader at Luong The Vinh High School. They pulled and cut her hair before dragging her along the street.
They then pushed Nham against a wall, tore her shirt and slapped her face, according to the clip that has shocked the public and drawn the attention of local media.
Initial information has revealed that Yen led the attack on Nham because she believed Nham was dating a boy in the neighborhood they both knew.
One week before the Saturday attack, the girls had already fought, police said.
Do Van Luc, vice director of Quang Ninh police, said Nham's family did not want to press charges and pursue the case.
Representatives from the prosecutors' office, Luong The Vinh High School, and investigators, however, met with the family, advising them that the case was "too critical" and should be investigated, Luc said.
Police also committed to protecting Nham on her way home from school to avoid any more attacks.
However, so far the family does not want to take further action and Nham has refused to see a doctor to check on her injuries, according to Luc.