LOS ANGELES (CBSLA.com) — A parent and two students are accused of assaulting a South LA middle school teacher, according to an anonymous tip to the CBS2/KCAL9 newsroom.

The tipster called it “a brutal attack.”

School police confirmed to CBS2 and KCAL9 reporter Stacey Butler that an attack did take place at the John Muir Middle School about 9 a.m. Wednesday.

LA Unified School District spokesperson Tom Waldman told CBS2 and KCAL9, that a verbal confrontation between a parent and a teacher turned violent.

Waldman said that mother, Kiki Fowler, along with two students who were accompanying her, were involved in the attack.

It was unclear if the students were related to the mother.

LAUSD says police arrived and took the mother and the two suspects into custody.

Authorities said the fight started when Fowler walked into the special education office to make an appointment.

When she was instructed to leave, LAUSD says the woman and the two students confronted the teacher.

A source, who wished to remain anonymous, wrote to CBS2/KCAL9:  “I do think the public awareness of this event is needed. This event has been brewing for some time and the need to have some kind safety procedures in place at our local schools is essential.”

The teacher’s name and the extent of her injuries, if any, was not disclosed.