The coordinator of the women's national team for USA Gymnastics has stepped down, the latest departure to rock the embattled organisation in the wake of a sexual abuse scandal centred on former team doctor Larry Nassar.
Valeri Liukin said on Friday he was stepping down after taking over for Martha Karolyi in September, 2016.
Liukin said in a statement that while he wanted to help turn the program around, "the present climate causes me, and more importantly my family, far too much stress, difficulty and uncertainty".
USA Gymnastics did not immediately respond to a request for comment.
Its board of directors stepped down earlier this week under pressure from the United States Olympic Committee.
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The USOC announced on Friday it hired a law firm to conduct an independent investigation into decades-long abuse by Nassar, a long-time doctor for USA Gymnastics and Michigan State University who is awaiting sentencing for assault charges against athletes at a Michigan gym.
Nassar has already been sentenced to up to 175 years in prison on similar charges in a separate case completed last week and was previously sentenced to 60 years in prison on child pornography charges.
Liukin, a four-time Olympic medallist while competing for the Soviet Union, is the father of 2008 Olympic all-around champion Nastia Liukin.
