METAIRIE, LA. -- Jefferson Parish Sheriff's Office is investigating threatening graffiti that appeared at East Jefferson High School Wednesday morning.

Spray-painted threats including "#Sandyhook2017" and "Shooting the school up -Crazy White Boy" were found on the walls of the Metairie high school as students arrived for classes Wednesday.

The sheriff's office later released still images from surveillance video, showing two suspects wanted in connection with the incident.

"We take these types of things very seriously for the protection and safety and security of the students attending East Jefferson and other schools throughout Jefferson Parish, said Sheriff Newell Normand. "We are actively working the case."

Normand suggested that the two suspects turn themselves in to the sheriff's office. Although the suspects are masked in the video, they are recognizable by their clothes and physical attributes. "We're going to get you. We're going to find you. It's not a question of if, it's a question of when."

School officials say they are taking the threat seriously, however, classes would not be canceled. The school says parents were informed they could pick up their children at their discretion.

Photos: Violent, derogatory graffiti appears at East Jefferson High School

The Jefferson Parish Sheriff's Office was notified and deputies are on campus. Extra staff is also on campus to assist distraught students.

The aunt of a student who attends the school, who wished to remain anonymous, said the school did not notify parents of the graffiti and continued to hold class as usual.

The aunt said her niece texted the photos to her mother, who then returned to the school to check her daughter out of class. The aunt said other parents were doing the same and were wanting answers from the school.

Angel Denstedt, a parent of a student who attends the school, said she was concerned as to why classes were continuing. She spoke with WWL-TV reporter Jacqueline Quynh during a Facebook Live.

Anyone with information on the identity of either or both of these suspects, or who may have information in this incident is asked to contact Detective Don Grossnickle at 504-364-5300 or CRIMESTOPPERS.