Investigators believe a 13-year-old was planning to kill three other students and himself before Greenwood police intervened.

On Thursday morning, Greenwood police received an anonymous tip that a seventh-grade student had been talking about killing three other male students at East Hills Middle School before committing suicide, according to a police report.

Police conducted an investigation and found validity to the threat, Greenwood police Lt. Nick Driscoll said during a Friday news conference.

The student told school officials about his intentions during an interview. Police also had found notes and journals belonging to the student that indicated as much, Driscoll said.

The students who had been threatened were notified, as were their parents, and the student who allegedly made the threat was separated from them, Driscoll said.

The student has since been admitted to a mental-health facility, Driscoll said.

At no point was anyone in danger. Police acted quickly and worked in tandem with school officials, Driscoll said.

The case has been forwarded to the Sebastian County Prosecuting Attorney’s Office for review. A police report investigating first-degree terroristic threatening and third-degree battery was filed.

Greenwood police plan to meet Monday with Prosecuting Attorney Dan Shue, who will make a determination in the case, Driscoll said.