KAYSVILLE, Utah — Officials with the Davis School District said a teacher and principal have been reinstated after they were placed on administrative leave while district officials investigated how a student ended up wearing an apparent Adolf Hitler costume to a Halloween parade last week.

District officials said disciplinary action was taken and they have concluded their investigation into the incident. They did not disclose any further details, saying state and federal law prohibits them from doing so because the matter involved student and personnel issues.

Video and pictures from the event at Creekside Elementary surfaced on social media posts, which showed the boy dressed up with a Hitler-esque mustache and what resembled a Nazi uniform with a swastika armband at a school Halloween event.

“A student at Creekside Elementary recently took part in a school Halloween parade dressed in a costume that should not have been allowed. The Davis School District does not tolerate speech, images or conduct that portray or promote hate in any form. Because of that, it continues to apologize for the situation,” district officials said in a statement Friday. “The district takes the matter very seriously. It has followed policy, has taken appropriate disciplinary action and has concluded its investigation. The teacher and principal have been reinstated. Because the situation involves student and personnel issues — and federal and state law forbids disclosure — the district cannot discuss further details of the investigation or the results of it. The district will also continue and expand initiatives to educate and train school and department employees regarding the importance of protecting the rights of individuals.”