WHEATON, Ill. (CBS) — A former Niles North High School gymnastics coach accused of inappropriate behavior with students is facing new allegations.

WBBM Newsradio’s Mike Krauser reports a motion filed by DuPage County prosecutors says more girls have come forward, accusing 30-year-old Jeffrey Tackes of inappropriate behavior.

READ MORE: Federal Judge Says Deadline To Ratify Equal Right Amendment 'Expired Long Ago' In Setback To Advocates' Efforts

The former cheerleading and gymnastics coach and math teacher was already awaiting trial on misdemeanor charges of sexual exploitation of a child.

Prosecutors said he exposed himself to two Niles North cheerleaders – 16 and 17 years old – during a game of strip poker at his home, and suggested they take a shower together.

READ MORE: At Least 22 Shot, 2 Killed In Weekend Violence In Chicago

He’s also accused of sending the girls inappropriate emails.

The Chicago Tribune reported, since his arrest, three more girls have come forward. One said he sent inappropriate text messages in 2009, the other two said he touched them inappropriately at a gymnastics camp in 2010.

MORE NEWS: CPS Middle School Students Returning To Classrooms Monday

LISTEN: WBBM Newsradio’s Mike Krauser reports