Wall Township High School in New Jersey is investigating how President Trump logos and quotes were removed from pictures in their high school yearbook, after three students complained about the alterations.

Wall Township Public Schools Superintendent Cheryl Dyer sent a letter to parents on Friday, informing them that the school was investigating the matter.

"There is nothing in our student dress code that would prevent a student from expressing his or her political views and support a candidate for public office via appropriate clothing," Dyer wrote, according to CNN. "Rather, I applaud students for becoming involved in politics and for participation in our democracy."

"The high school administration was not aware of and does not condone any censorship of political views on the part of our students. This includes statements that they might make or clothing with references to candidates for public office that they might wear," the letter added.

"[The school administrators and I] were not aware of [the photo alterations] until the books were distributed, we do not condone it, and we are working on a remedy to the issue," Dyer said to CNN.

Dyer announced on Monday that the school had suspended the yearbook advisor while the investigation is underway.

Junior Grant Berando's T-shirt that said, "TRUMP: Make America Great Again," and junior Wyatt Dobrovich-Fago's vest featuring a Trump logo had been edited out of the photos that appeared in the yearbook, although they did appear in photo proofs that the students' parents approved for use in the yearbook.

Additionally, Dobrovich-Fago's younger sister Montana discovered that the Trump quote she had submitted no longer appeared underneath her freshman class president photo. Instead, a quote from Franklin D. Roosevelt appeared under her photo, AP reported.

"I like thinking big. If you are going to be thinking anything, you might as well think big," was the quote she originally submitted.

"He was disappointed," Berando's father Joseph told CNN. "This is the first election he has been interested in."

"I want to know who thought it was OK to do this," said Wyatt and Montana's mother Janet. "I want the school to seek disciplinary action and to be held accountable."

Joseph Berando's father agreed, saying that he hoped the school would reissue the yearbooks. "I want the yearbooks to be reissued and I want a letter from the administration explaining why they are reissuing the yearbook," he said.