The body of a teen who went missing late last week from the Stockholm section of Hardyston was discovered by investigators Monday afternoon.

Members of a search team from the Sussex County Prosecutor’s Office found the body of 15-year-old Jordin Tenk in a heavily wooded section of the Hamburg Mountain Wildlife Management Area at approximately 12:30 p.m. Monday, according to a post on the Hardyston Township Police Department Facebook page. A firearm was recovered at the scene, and there is no known threat to the public relating to the incident.

Because the incident is still under investigation, further details surrounding Tenk’s death were not immediately available, according to police.

At Vernon Township High School, where Tenk was a sophomore, the news of Tenk's death was confirmed by Superintendent Karen D'Avino in a message disseminated to the high school student body late Monday afternoon.

"At the end of the school day, you likely learned of the passing of one of your classmates, Jordin Tenk," D'Avino wrote. "Whether you knew Jordin or not, we realize you may be feeling many emotions. ... There are counselors available at the high school from now through this evening. Services will continue tomorrow as well and will be provided after that as necessary. Navigating through this tragedy will be difficult."

D'Avino indicated a phone number, 973-764-5794, also is being made available for students in need of grief counseling or other services. "This number will provide you with immediate access to counseling services," she wrote. "Please let us know if you need any assistance."

D'Avino, in a separate message to school staff, wrote that it was with "great sadness" that she was sharing the news of Tenk's passing. She added: "We encourage students to be with their families during this very challenging time. Suffering a student loss is always a traumatic event. ... Our thoughts go out to Jordin's family."

In a phone conversation late Monday, D'Avino said volunteers from the Traumatic Loss Coalition and from neighboring communities including Ogdensburg and Hardyston would remain on hand at the school for as long as needed. She said therapy dogs also will be on-site at the school Tuesday.

"We'll have as much support as we possibly can for as long it's needed," she said.

Earlier Monday, at 11:10 a.m., the high school briefly went into lockdown after a female student's boyfriend - who is not a student at Vernon Township High School - misconstrued information about the missing student that he received from her in a text message and mistakenly inferred that a threat was imminent and reported it to the Vernon Police Department, which had been working with the Hardyston Police Department in attempting to locate the missing teen.

"The Vernon Police and school security quickly investigated and determined the boyfriend had misinterpreted the information, and the lockdown was lifted," according to a statement posted to the Vernon Police Department's Facebook page. "Our school safety remains a top priority. ... We are posting this information in an effort to curb the rumors and misinformation that is circulating."

Tenk, who lived in the Highland Lakes section of Vernon, was first reported missing Friday from his mother’s house in Stockholm, where he was believed to be visiting. At the time of his disappearance, police indicated he might have been in possession of a handgun and had made statements indicating an intent to harm himself.

A GoFundMe page created by Tenk’s aunt, Franci Ezzo Hric, had raised more than $1,200 for the teen’s funeral arrangements as of 6 p.m. Monday.

According to the page, Tenk had six brothers and enjoyed playing video games and hanging out with friends and family.

“We are extremely grateful for everyone who helped us in searching for Jordin,” read a statement on the page. “At 15 years old, Jordin is a bright light gone too soon.”

Other agencies that assisted in searching for Tenk included the Morris County Department of Public Safety, Ramapo Search and Rescue, the Maywood Police Department K-9 Unit, the New Jersey State Park Police with its K-9 dog, and the Franklin Borough Police Department.

Herald reporter Eric Obernauer also contributed to this story.

This story has been updated to include the New Jersey State Park Police as one of the agencies that assisted in the search.