A Jewish teenager’s 14th birthday party went viral for the wrong reason this week after two girls used frosting to decorate a cupcake with a swastika, the Phoenix New Times reports.

According to the paper, the girl’s mother—a Phoenix, Arizona-based public relations professional, who asked to remain anonymous—discovered the offensive birthday treat the morning after the party, finding that the girls had uploaded photos of the cupcake to Snapchat.

Appalled over the situation, the woman says she immediately notified the girl’s parents about their behavior. Still, feeling emotional over the incident, the mother posted a photo of the cupcake along with a scathing open letter to Facebook. Though the post has since deleted, the text was published by other news outlets in the wake of the story, and went viral following the birthday party.

"This is not a political post, but I believe this has EVERYTHING to do with the political environment we're now living in," the woman wrote. “Is this funny? Is this right? Is this nice to do at another person's party in another person's house? Are the lids to human kindness and decency ripped off so permanently that this can happen to YOUR kid in YOUR house? Just something to think about and maybe have a discussion with your children about certain actions."

Though the mother later told the Phoenix New Times that she didn’t believe the cupcake constituted a hate crime—and the girl responsible for the Swastika said it was meant to be "funny"—the woman’s Facebook post also pointed to the number of racist and anti-Semitic incidents that have gripped the country following the election of Donald Trump.

According to the Southern Poverty Law Center, more than 400 instances of hateful intimidation and harassment have been reported since Election Day. Crude images of swastikas and white supremacist hate-speech have been scrawled on walls, billboards, and homes around the U.S.

Though the mother still seems distraught over the events at her daughter’s birthday party earlier this month, she says she sees the incident as a valuable "teaching moment.”

[via Phoenix New Times, Munchies]