Three Croton Harmon High School seniors are accused of breaking in to school to try to change their grades.

According to police, the alarm at the high school went off around 11 p.m. on November 18. When police responded they noticed an unsecured window and found the three 17-year-olds outside the building. The teens turned themselves in on November 22 and were charged with burglary in the third-degree at their arraignment. They were released to their parents.

School officials cannot confirm why the teens were inside the school. The trio was suspended for a week.