CERRITOS >> A 15-year-old girl was arrested today on allegations of posting to social media violent threats against Gahr High School in Cerritos.

Deputies arrested the girl, whose name was withheld because of her age, about 12:30 p.m. at the school at 1111 Artesia Blvd., according to the Los Angeles County Sheriff’s Department.

The arrest was made following an investigation that began after students alerted school officials of the social media posts, Lt. Steven Marella of the sheriff’s Cerritos Station said.

“The post contained a text threatening violence at the school,” Marella said.

It was unclear if the youth remained in custody. She was booked at the Cerritos Station.

A rash of school threats have emerged in Southern California since Feb. 14, when a 19-year-old gunman killed 17 people at a high school in Parkland, Fla.