The Department of Education is investigating startling allegations at a Queens high school.

Former teachers of Maspeth High School say they were forced to change students' grades to boost the graduation rate, according to the New York Post.

The school has a 98% graduation rate and has been honored by the Federal Department of Education as a "Blue Ribbon School."

According to the allegations in the Post report, the high graduation rate can be attributed to a "no fail" rule forbidding teachers from failing students.

Whistleblowers told the newspaper that teachers routinely changed answers on tests, including the Regents Exams, and faced retaliation if they didn't comply. They also alleged some students have falsely registered for classes during periods that don't exist.

"We take any allegation of academic misconduct very seriously, and there are strict protocols in place to ensure complaints are reported, investigated and addressed," a Department of Education spokesperson said in response to the claims.