Sacramento police confirmed Thursday that an investigation in to an alleged sex assault on the campus of Mark Twain Elementary school is underway.
The alleged incident may have happened this week.
The man's name has not been released since he has not been arrested.
However, spokesperson Gabe Ross, from the Sacramento City Unified School District, says he was a per-diem employee who led the START program's after school activities at Mark Twain.
Ross also confirmed Thursday that the man is no longer working for the district.
Police do not believe the man is a danger to the public.
On the school's campus Thursday, students say emotions were running high.
"Many first and second-graders came to our class today to cry ... everyone was crying" student Liliana Franco, 11, told FOX40 Thursday.
"My experiences for him have been great. He has always been a great teacher. He used to always help me with my homework," Franco added. "I understand he will never be back, but I hope he feels better later on because he was very dear to me."
Parents received a letter in the mail and a voicemail Thursday from the principal, who stated in part:
"The employee was immediately released... by the district and will not be back on campus..."
Spokesperson Linda Tucker with the city of Sacramento stated Thursday that the man is currently on administrative leave from his position with the city's START program.