A Denver mother who believed her daughter was being bullied at school drove into the school’s parking lot and threatened four girls with a gun, according to an arrest document.

Monica Avila, 34, was charged Tuesday with four counts of felony menacing and one count of possession of a weapon on school grounds, also a felony. According to the probable cause statement accompanying her arrest paperwork, Avila drove into the parking lot at Lake Middle School on Thursday afternoon and confronted four girls, ages 13 and 14.

The statement says Avila began arguing with the girls about bullying. She then, while still sitting in her car, pulled out a black semi-automatic handgun and said, “Look what I have,” the document states.

Avila then drove out of the parking lot and parked across the street, as the girls told adults about what happened and called 911, according to the probable cause statement.

When officers arrived, they found Avila sitting in her car. They later found a handgun in the car.

Avila is being held in the Denver County Jail on a $50,000 bond. She is scheduled to appear in court again on Thursday to be formally advised of the charges against her, according to the Denver District Attorney’s Office.

John Ingold: 303-954-1068, jingold@denverpost.com or twitter.com/john_ingold