A 29-year-old woman was arrested last week after spending four days fraudulently enrolled in a New Jersey high school as a student, district officials said.
The woman, identified by New Brunswick Police as Hyejeong Shin, of New Brunswick, was charged with one count of providing a false government document with the intent to verify one's identity or age.
Police said she showed a false birth certificate "with the intent to enroll as a juvenile high-school student."
New Brunswick Public School District Superintendent Aubrey Johnson said Tuesday during a Board of Education meeting that Shin had attended New Brunswick High School for several days before she was caught.
"Last week by filing some false documents, an adult female posing as a student was able to be enrolled in our high school," Johnson said, according to video of the meeting shared on Twitter by reporter Charlie Kratovil of New Brunswick Today.
During her days in school, Shin spent a lot of time with guidance counselors who were trying to find out more information about her, Johnson said.
Ultimately, staff members at the school "uncovered this woman's ruse and enabled us to address this situation promptly," he said.
"All appropriate authorities were immediately notified and the individual in question was arrested for providing false documentation," he said, noting she was barred from district property.
Johnson said the school has warned students to refrain from having any further contact with the woman, in person and remotely.
He said the district will take a look at their enrollment process to better identify false documentation.
"This is an unfortunate event. Communication has been provided to the parents of individuals that the young lady may have come into contact with and communication has been provided to all high school parents today," Johnson said.
He said there's a police investigation underway into the incident.
Police said that according to New Jersey statues, schools are required to "immediately enroll unaccompanied children, even in the absence of records normally required for enrollment." But a district can request such documents later on to verify the student's age.
NBC News has reached out to the school district for comment. The Middlesex County Prosecutor's Office said it is not investigating the incident.
It's not immediately clear if Shin has a lawyer.
This article was originally published on NBCNews.com