Victim's father lunges at disgraced doctor

A father whose daughters were abused by disgraced US gymnastics doctor Larry Nassar has tried to attack him in a Michigan courtroom.

The man, named by US media as Randall Margraves, was restrained by court security officers.

Before rushing to the table where Nassar was sitting, the man had asked to have five minutes alone with Nassar in a locked room.

Judge Janice Cunningham said she could not allow that.

The dramatic intervention brought Nassar's final sentencing hearing to an abrupt halt.