Allegations of racism are swirling around Flower Mound schools after a photo taken at Marcus High School included racial slurs and a swastika.
Principal Gary Shafferman sent a letter to parents saying, "Please hear me clearly — this type of hateful speech will not be tolerated at Marcus High School," KXAS-TV (Channel 5) reported.
The photo shows someone standing in front of a whiteboard where an expletive was written along with a racial slur. A swastika was drawn off to the left.
"When I asked them to show me [the letter], I was really just beside myself," grandparent Prophetess Hayden told NBC5. "If we don't take a stand and do something and stand up for what change really should happen, then this is just going to be another incident that slides back under the carpet after things die down."
The school has launched an investigation, Denton County's Cross Timbers Gazette reported.
It's not the first time Flower Mound schools have had to address racism. In 2015, students from Flower Mound High School held up signs that spelled out "White Power" during a boys basketball game against Plano East.
Reaction to the Marcus incident spread quickly.
"This is what my nephew has to go through going to Marcus High School in Flower Mound Texas," said Dezzarae Haley, who posted an unedited version of the photo on Facebook. "When your going to school it's supposed to be a place where you feel safe and secure unfortunately these days that's not the case."
"This year will be the year my friends and I make a change about the racism at Marcus High school," Avyonia Davis posted on Facebook.
"Will it ever stop?" Kimberly Perry said on Facebook.