Updated

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

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

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

Offensive coordinator Brian Wright will serve as interim head coach for the Owls, who are 2-6 and play host to Tulane on Saturday.

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