The Wauconda Police Department said on Tuesday that it "has been made aware of a situation" involving the employee.
CLC issued a statement, saying college officials immediately placed the employee on administrative leave when they became aware of the situation. The employee has not been on college or high school property since.
Wauconda police said their investigators are in the early stages of gathering information. Police did not immediately say what the investigation surrounds or what type of work the employee does.
CLC and Wauconda Community Unit School District 118 said they are cooperating with the investigation.
Wauconda police asked anyone with information to call them at 847-526-2421.
Further information was not immediately available.
This is a developing story. Check back with ABC7 for updates.