Florida Atlantic football coach Carl Pelini resigned Wednesday after acknowledging to school officials that he used illegal drugs.

He will not be with the team when it hosts Tulane on Saturday in Boca Raton, Fla.

Defensive coordinator Pete Rekstis also resigned after a post-practice meeting with athletic director Patrick Chun, who said school officials received word about the matter earlier this week.

An investigation is continuing, said Chun, who added the investigation already suggests that only Pelini and Rekstis were involved. Chun said no criminal charges have been filed against either Pelini or Rekstis.

Offensive coordinator Brian Wright will serve as interim head coach for the Owls (2-6). Wright is in his first year at FAU and has never been a head coach in his 17 years in the business.

Pelini’s resignation was first reported by ESPN.com.

Pelini was 5-15 in two seasons at FAU, his first time as a head coach. He was previously at Nebraska, working as defensive coordinator for his brother, Bo.

“I apologize for exercising poor judgment,” Pelini said in a statement. “My greatest concerns at this time are for me family, the dedicated FAU players and my staff. I am confident that Pat Chun and the University administration will continue to move the program forward.”

FAU closed its practice to the media for undisclosed reasons Wednesday morning, before reports of the resignation surfaced.

Representatives from Tulane declined to comment on the situation.

Scott Kushner contributed to this report.