Simone Biles broke down in tears as she told Congress the FBI and gymnastics officials turned a “blind eye” to former team doctor Larry Nassar’s sexual abuse of her and other women.

Testifying before the Senate judiciary committee, she said “enough is enough” as she and three other US gymnasts spoke about the lasting toll Nassar’s crimes have taken on their lives.

Politicians are examining the shortcomings in the FBI investigation into Nassar, including delays that allowed him to abuse more athletes.

An internal Justice Department investigation report in July said the bureau made fundamental errors in the probe and did not treat the case with the “utmost seriousness” after USA Gymnastics first reported the allegations to the FBI’s field office in Indianapolis in 2015.

Biles, considered one of the greatest-ever gymnasts, said that after reading the report, she felt the FBI “turned a blind eye to us”.

Biles, who has won 25 world championship medals and seven Olympic medals, said she believed the abuse happened because organisations created by Congress to protect her as an athlete – USA Gymnastics and the US Olympic and Paralympic Committee – “failed to do their jobs”.

Hundreds of girls and women said Nassar sexually abused them under the guise of medical treatment when he worked for Michigan State and Indiana-based USA Gymnastics, which trains Olympians.

Biles, who declared herself a survivor of sexual abuse, said: “I blame Larry Nassar and I also blame an entire system that enabled and perpetrated his abuse.”

She said USA Gymnastics and the US Olympic and Paralympic Committee “knew that I was abused by their official team doctor long before I was ever made aware of their knowledge”.

Appearing alongside other athletes, including Aly Raisman, McKayla Maroney and Maggie Nichols, Ms Biles was visibly emotional.

She said: “We have been failed and we deserve answers.”

The hearing will examine why the FBI failed to carry out an investigation sooner into Nassar, 58, who is accused of abusing up to 150 women.

A report from Justice Department Inspector General Michael Horowitz in July found the bureau made a series of failures in its handling of allegations against him when they were made aware of the abuse.

During the hearing, Ms Biles also opened up about how the abuse had affected her during the Tokyo Olympic Games this summer, which saw her withdraw from five final events due mental health reasons.

She added she travelled to Japan without her family due to COVID-19 restrictions.

She said: “As the lone competitor in the recent Tokyo Games who was a survivor of this horror, I can assure you that the impacts of this man’s abuse are not ever over or forgotten.

“This meant I would be going to the gym, to training, to therapy, living daily among the reminders of this story for another 365 days.”

FBI director Christopher Wray, who was not leading the agency during the original investigation, told the Senate panel that the actions of the agents who botched the investigation are inexcusable, and he announced one of the agents “no longer works for the bureau in any capacity”.

Nassar was sentenced in federal court in 2017 to 60 years in prison on charges of possessing child sex abuse material.

A year later, he was also sentenced up to 175 years and up to 125 years in two separate Michigan courts for molesting female gymnasts under his care.