Carolina Panthers general manager Marty Hurney confirmed Wednesday that defensive backs coach Curtis Fuller had resigned from the team, but the details surrounding his sudden departure have just come into focus.

According to ESPN, Fuller stepped down amid accusations of inappropriate behavior towards women.

“After approaching Coach Fuller with the findings of an investigation into complaints of inappropriate conduct, we accepted his resignation,” team spokesperson Steven Drummond said in a statement. “The Panthers are deeply committed to ensuring a safe, comfortable and diverse work environment where all individuals, regardless of sex, race, color, religion, gender, or sexual identity or orientation, are treated fairly and equally.”

Fuller’s resignation comes as the NFL’s investigation into allegations of sexual harassment and workplace misconduct by Panthers owner Jerry Richardson heats up. Just last week, one of at least three women who claim to have been harassed by Richardson detailed their stories in letters printed by Sports Illustrated.

“I didn’t know what to do when you called me to your stadium suite in the middle of the week so you could take off my shoes, place my legs in your lap and rub their entire length, from toes to crotch,” the woman wrote in the letter. “I didn’t know what to do when you asked me to turn around so you could see how my jeans looked. I didn’t know what to do when you brushed my breasts to put my seat belt around me in the front seat of your car. I didn’t know what to do when you put your hands on my mouth, for me to kiss them. I didn’t know what to do when you asked me uncomfortable, sexually charged questions.”

Meanwhile, Fuller, 39, had been with organization since 2013 and was promoted to defensive backs coach last year.