A video published on Instagram shows a student in Westminster, Maryland, kicking the chair from underneath a peer who didn't stand during the Pledge of Allegiance Tuesday.
According to the Daily Mail, the Winters Mill high school student who kicked the chair was disciplined.
He can be heard telling his classmate he was being disrespectful, and needed to have his "a-- kicked."
The Daily Mail reports school officials didn't state whether the student was sitting for a specific reason or protest, though he later posted on social media he was "practicing [his] right to free speech."
"I will not stand for a country who mistreats those who aren't white and rich. Forced patriotism is fascism, and nothing less."
The student who was sitting called for others to sit down with him in solidarity, using the hashtag "#sitthef---down."
School officials explained to the Carroll County Times the student who kicked the chair was exhibiting "unacceptable" behavior.