JEFFERSON COUNTY, Colo. (CBS4) – Parents at West Jefferson Middle School in Conifer received an email telling them swastikas were painted on a school playground over the Thanksgiving holiday break.

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In 2017, anti-Semitic activity at the same school prompted complaints to the Jeffco School Board. The U.S. Department of Education Office for Civil Rights found a “hostile environment” existed at the school.

In January, a student appeared before the Jefferson County School Board to complain about the handling of complaints about anti-Semitic remarks and actions.

(credit: CBS)

“I constantly deal with anti-Semitism and other students saying that ‘Hitler was a genius,’” she told them.

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The school suspended some students and presented programs on Holocaust awareness and anti-bullying.

The report from the OCR found there was “insufficient evidence to determine the school district discriminated as alleged.”

The school district issued a statement about the most recent incident of vandalism stating,

This is absolutely unacceptable behavior and we will do as much as possible to educate students on this issue.

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The graffiti has been removed, and the Jefferson County Sheriff’s Office is investigating.