Officials with the Cobb County School District say they have begun an investigation over social media posts allegedly written by three of the district's employees over the killing of conservative activist Charlie Kirk.

In a statement, school officials say they have received complaints from parents and other Cobb educators of posts that appeared to celebrate the shooting.

While the school district did not share any details about the posts, they emphasized that the posts "do not reflect the outstanding professionalism demonstrated by the vast majority of Cobb educators daily."

"Posts that celebrate or support the murder of an innocent person by a school shooter are unprofessional and disruptive to the school environment," school officials said in a statement. "We expect Cobb educators to help students learn and grow, which requires limiting disruptions to their classrooms and school."

The school district's social media policy reads that, while it recognizes the value in social media, employees must use platforms "respectfully and ethically to avoid harming the reputations of themselves and colleagues, as well as the reputation of the District."

Cobb officials say that any employees who may have been involved have been placed on administrative leave and will not interact with students or parents while the investigation is ongoing.

The school district plans to report the situation to the Georgia Professional Standards Commission, the ethics board for Georgia teachers.

Cobb County School Superintendent Chris Ragsdale plans to address the issue at the upcoming school board meeting on Thursday.

Parents react to Cobb Schools' investigation

Cobb County parents are divided over the school district's decision.

"That is very unfortunate at a time such as this for teachers not to be able to voice how they feel privately and then have to worry about the security of their employment when teachers are already under a lot of scrutiny to have to perform and to educate our children," one parent told CBS News Atlanta over the phone.

Many parents were afraid to discuss the matter on camera. One said the teachers who were put on leave should not be allowed to return to class.

"Those types of social media posts are out of line regardless whether or not the school district has the right to tell their employees what they can or can not makes those kinds of posts," he said. "That's what's questionable."

Multiple firings over Charlie Kirk death comments

Kirk was shot and killed while taking questions during an outdoor event on Sept. 10 at Utah Valley University.

Tyler James Robinson, 22, of Washington, Utah, was arrested on suspicion of aggravated murder and other felony offenses. Prosecutors are preparing formal charges that could be filed as early as Tuesday, when he is scheduled to make his first court appearance. Authorities have said the crimes in Kirk's death include aggravated murder, obstruction of justice, and felony discharge of a firearm.

Investigators have spoken to Robinson's relatives and carried out a search warrant at his family's home in Washington. They have not provided many details about why they think Robinson carried out the attack. 

Numerous workers have been fired for their comments on Kirk's death, among them MSNBC political analyst Matthew Dowd.