A Fox High School teacher has been charged with having sex with a student at his apartment.

Eugene "Richard" Milzark, 34, was charged Tuesday in St. Louis County Circuit Court with a felony count of having sexual contact with a student, according to St. Louis County Police.

Authorities allege that Milzark and the female student had sex at his apartment in the 11000 block of Pointe South in St. Louis County.

Police began their investigation on Jan. 6, when the victim reported the sex. Police would not release the victim's age.

Dianne Brown, superintendent of the Fox school district, said at a press conference Wednesday afternoon that the district removed Milzark from the classroom on Jan. 6 after hearing of the allegations and placed him on paid administrative leave. The district is now preparing to terminate his employment, Brown said.

Milzark has worked for the district for four years. He taught English at Fox High School.

Brown said that the school district does extensive background checks on all prospective teachers before hiring them and that Milzark's record before this incident was clean. She said she was saddened by the incident but emphasized that the district has "a lot of great staff members."

"Any violation of our students' trust is disheartening," Brown said.

Milzark was in custody today. Bond was set at $10,000.

Jonah Newman of the Post-Dispatch contributed to this report.