A Colorado middle school teacher whose been teaching in the same district for 20 years is on leave after she allegedly assaulted student who wouldn’t stand up for the Pledge of Allegiance.

The Denver Post reports that Karen Smith, a physical education teacher at Angevine Middle School with the Boulder Valley School District (BVSD), is accused physically assault a student in her class, although it’s unclear exactly what she allegedly did the to the child. Lafayette police Cmdr. Brian Rosipajla confirmed that police responded to the middle school at noon on Thurs., at 1150 W. South Boulder Road.

According to Boulder Valley School District spokesman Randy Barber, the school district allows students the choice of sitting or standing during the pledge, the DailyCamera reports. He didn’t comment further since the accusation is still under investigation.

The school’s principal sent out a letter to parents, explaining that a substitute teacher would replace Smith while the alleged incident is being investigated.

“While I cannot share much information, following an incident today at school, Ms. Smith was placed on paid administrative leave. We are working closely with our partners at the Lafayette Police Department. We believe in due process and therefore ask that everyone respect Ms. Smith’s privacy at this time.”

The story is still developing. Check back with CrimeOnline as additional details become available.

[Feature Photo: Karen Smith/Boulder Valley School District]