More than 1,000 high school students from Berkley California went out on the streets on Thursday to rally against the recently viral racist message referencing the Ku Klux Klan (KKK) setting a date for lynching black students this year.

The message was reportedly uploaded on a school computer, according to a report from Al Jazeera, and was later shared to Twitter by Berkley's Black School Union. It had a hate message for the students of color, including a photo from the school's library with the announcement that reads: "KKK FOREVER PUBLIC LYNCHING DECEMBER 9th 2015."

After the hateful message became known to the students, at around 10 a.m. on Thursday, some 1,500 high school students decided to march out of their school and walked around the community while chanting "Black Lives Matter."

"They are really afraid because they have been threatened by this message," Mark Coplan, a spokesman for the Berkeley Unified School District said as quoted by Los Angeles Times. "They are calling on everyone to come up with solutions to end this kind of madness."

Meanwhile, the message was devastating for the school board since it is against what the school stands for, according to Berkeley High principal Sam Pasarow, who released a statement to the school's parents and students via an email.

The hateful "messages such as this one will not stand in our community," Pasarow said on the email. "We are working hard to create a positive and inclusive school culture and we recognize the deep pain and rage that hate crimes such as this one bring to our students of color as well as the damaging effects on our entire community."

Al Jazeera further reports that the incident is now under the investigation of the Berkley Police Department. "It's definitely hateful. We're looking into this as a hate crime," said Bryan White, a spokesman for the Berkley Police Department.

This is not the first incident that attacked the students of color and threatened the safety of Berkley High School students. Navya Laki, 17, a senior from Berkley revealed that previous racist incidents already happened, and, unfortunately, it was not taken seriously by the school staff. Laki also said that the recent incident might be the one that would be actionable, per Al Jazeera.

As of the moment, initial investigations suggest that the message on the computer seemed like a screenshot of the school's homepage, which was modified, and is not an actual website.