(NECN: Kathryn Sotnik, Andover, Mass.) - Police were stationed at the West Middle School in Andover, Massachusetts Tuesday.
That's where a math teacher, Darrell Keene, was arrested shortly after dismissal Monday.
Keene was nabbed by Andover Police for a fugitive of justice charge stemming from a felony child sex assault charge out of New Hampshire.
The arrest was unsettling for parents, who were notified by email.
"It's disturbing, it's disturbing," said parent Anita Johnson. "I don't want to even think about it."
"There wasn't a lot of details, so I guess I'm going to have to wait until everything comes out," said Barbara Mangione, another mother.
Stratham Police will only say a New Hampshire child was contacted through the internet and sexually assaulted.
At the 40-year-old's Haverhill home Tuesday, someone closed the shades when NECN arrived.
NECN was also told by a man through the door to leave.
A neighbor said off-camera he doesn't see too much of Keene.
"He doesn't really talk," said the neighbor.
An Andover student also spoke of Keene's outward character.
"He was just an ordinary teacher, not much about him," said Matthew Mangione.
At an Andover school committee meeting Tuesday night, the Superintendent didn't offer anything more than a reading a prepared statement, reiterating that the arrest does not involve any Andover students.
"We will continue to exercise all measures to protect the safety and welfare of our students," said Superintendent Marinel D. McGrath.
Keene has waived rendition, meaning he'll face the charges in New Hampshire, and is being held without bail at the Middletown House of Corrections.
According to a statement, the Stratham Police Department "also continues their investigation and is working with the NH Internet Crimes Against Children Task Force, the Andover Police Department and the Massachusetts State Police Internet Crimes Against Children Task Force."
Keene has been placed on leave from the middle school and will be back in court on June 19.