An investigation commissioned by the BBC has found that employees were aware of complaints of sexual assault against the late entertainer Jimmy Savile and missed opportunities to stop him.

However, the review by a former court of appeal judge, Dame Janet Smith, cleared the institution of responsibility. She found no evidence that senior managers "ever found out about any specific complaint relating to Savile's inappropriate sexual conduct."

Smith's review, published Thursday, says BBC staff missed opportunities dating back to the late 1960s to stop Savile. She blamed a culture of fear toward celebrities for preventing the allegations from coming to light, and wariness of saying anything that might "rock the boat."

Savile, who died in October 2011, is believed to be one of the country's most prolific sex offenders.