Simone Biles and others to sue FBI for $1bn over Larry Nassar investigation

Women who say they were sexually assaulted by a disgraced US national gymnastics team doctor plan to sue the FBI for $1bn (£800m).

Claimants say the FBI mishandled credible complaints of sexual assaults by Larry Nassar.

They include Olympic gymnastics gold medallists Simone Biles, Aly Raisman and McKayla Maroney.

Nassar is serving up to 175 years in prison for molesting gymnasts.

The agency's own watchdog found the FBI disregarded allegations about Nassar and made early errors in its investigation.

Last year, a long-awaited report from the US justice department's Office of the Inspector General gave a scathing assessment of the federal agency's investigation into Nassar. Various missteps and cover-ups by FBI agents allowed Nassar's abuse to continue for more than a year after the case was first opened in 2015, the report found.