Issaquah/Sammamish Reporter staff writer Bryan Trude contributed to this story.

An investigation by King County Sheriff’s deputies delayed the opening of Pacific Cascade Middle School in connection to shooting threats seen online.

Monday evening deputies responded to a caller who reported reading threats online. The caller, a teacher at Pacific Cascade, received the threats through a web site used by students to turn in homework. The threats regarded the shooting of specific individuals who work and study at Pacific Cascade.

Following a nightlong investigation, deputies identified a 13-year-old female student as the suspect. They contacted her and her parents at home and determined she had no access to firearms.

Issaquah School District was notified of the threats.

Issaquah Superintendent Ron Thiele was at Pacific Cascade that morning as students, teachers and staff reported for classes after 9 a.m.

“King County deputies and our staff did a wonderful job of getting the message out as quickly as they could,” Thiele said. “All is well here.”

Thiele added that while classes were on as normal, King County would have an increased police presence at the school out of an abundance of caution.

An investigating detective is expected to forward charges of felony harassment to the King County Prosecutor within a week.