'We are Hitler youth' and other Nazi graffiti spray painted on Denver elementary school

A swastika and "we are Hitler youth" written in German was spray painted on an elementary school in the Denver suburb of Stapleton over the weekend.

Denver7 reported Sunday evening that Isabella Bird Community School was vandalized sometime on Friday night or Saturday.

Facebook user "Doc Knockout" posted a photo of the graffiti, saying that he was shocked by the vandalism at his children's school.

“This racist graffiti was left on the door of my children's elementary school," he wrote Sunday. "In my liberal neighborhood (Stapleton), in my liberal city (Denver), in my blue state (Colorado),” said a man who shared the photo on Facebook. “I am posting this to make the point that this is personal.”

He then mentioned all of the graffiti popping up all over the United States after the election of Donald Trump.

"I have heard a hollow call, primarily from Trump supporters, arguing for dispassionate discourse about the upcoming administration, focusing only on ideas and theory moving forward," he wrote. "In response to that, I assert something that both conservatives and liberals have said many times: that elections have consequences. And one of those consequences is that SOMEONE JUST LEFT A SWASTIKA ON THE DOORWAY OF MY KIDS' SCHOOL."

The Denver Police Department told Denver7 they “don’t know who [did this] or why," but they're investigating.

One parent at the scene saw a phrase spray-painted in German and translated it, saying that it read "we are Hilter youth."

Dozens of people worked at the school Sunday afternoon to help clean the graffiti off before students returned Monday.

See the photos below: