Another North Texas student has been arrested for allegedly making threats against school campuses in Collin County.

School officials with the Princeton ISD notified local police when they became aware of the threat, and an investigation ensued, according to a news release issued by the district:

“[Princeton ISD identified] a Clark Middle School student as a possible suspect, and police conducted a thorough investigation, including a search of the suspect’s home.

“Based on the evidence collected, an arrest warrant was obtained, and officers took the suspect into custody this evening and transported the student to the Collin County Juvenile Detention Facility where a charge of terroristic threat ‘placing public in fear’ (3rd degree felony) was filed.”

The news release also noted that a “tipster” helped bring the matter to a swift conclusion.

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There have now been three threats directed at schools in Collin County in the last week. In addition to the incident at Princeton ISD, a Prosper ISD student allegedly made social media threats against Prosper High School and the towns of Frisco and Prosper.

“At this time, law enforcement agencies do not believe that there was an active plan in either one of these cases, just the social media posts,” reads a letter from Prosper ISD, WFAA reported.

As previously reported in The Dallas Express, threats against multiple Frisco ISD campuses circulated on social media last weekend, prompting district officials to excuse any absences on Monday if parents chose to keep their children at home.

In a statement to The Dallas Express, the Frisco Police Department said that “investigators identified a 13-year-old Maus Middle School student as being responsible for the threat. Shortly after noon, the juvenile was arrested without incident and later transported to the Collin County Juvenile Detention Center.”

A message from Collin County District Attorney Greg Willis was also included in the statement.

“Any and every threat to harm our children and our schools will be taken seriously by my office. If the police make an arrest, my prosecutors will ensure swift and sure consequences,” said Willis.

Security concerns also abound at Dallas ISD, where multiple firearms incidents have occurred in the last year.

As previously reported by The Dallas Express, a student was shot outside a North Dallas high school in March, and an elementary school student brought a firearm inside his campus last year, where the gun accidentally discharged. No one was injured in the latter incident. However, parents were disturbed by the event.