A substitute teacher has been removed from a New Jersey school district after telling a group of first graders that Santa Claus is not real.

In a statement obtained by USA TODAY, Montville Schools Superintendent Rene Rovtar said the teacher "is no longer working in the school district."

Earlier this week, Principal Michael Raj of Cedar Hill School in Montville, New Jersey, sent a letter to parents apologizing for a teacher who told a first grade class Santa was not real.

"As a father of four myself, I am truly aware of the sensitive nature of this announcement," Raj wrote, reports NJ.com.

Raj said he also talked to the teacher about her "poor judgment."

In an earlier statement to local outlets, Rovtar, the superintendent, said she was "troubled and disheartened" by the teacher's decision.

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This article originally appeared on USA TODAY: Teacher who told kids Santa isn't real removed from New Jersey school district