WESTLAKE VILLAGE (CBS) — Four high school seniors were expelled from Westlake High, weeks before graduation, after they allegedly caused thousands of dollars in damage to school property.

According to the Thousand Oaks Police Department, students James Helo, Waziya Dupris, Kevin Post, and Kyle Clements were arrested after reportedly vandalizing the classroom of government teacher, Christina Harrison, in May.

Photos show the classroom was egged and covered with trash, urine, condoms and manure. Officials say the classroom’s “Wall of Valor,” honoring students who have served in the military, was also destroyed.

Harrison told CBS 2 that all four of the suspects were her former students.

The suspect also allegedly broke two windows in the school’s new multi-million dollar Carpenter Family Theatre.

Damages were estimated to be around $12,000.

Authorities say the teenage suspects could face felony vandalism and commercial burglary charges and jail time. The teens are expected to be arraigned in a Ventura County courtroom early next week.

Westlake High School’s principal, Ron Lipari, and Conejo Valley School District Superintendent Jeff Baarstad were unreachable for comment.