document: He was held in Essex by officers working on the investigation into historical sex crimes.
  The probe was launched in the wake of the Jimmy Savile scandal.
  The man has been released on bail until early December. The Met said the arrest fell under the strand of the operation known as "others".
  The investigation has also looked at the actions of Savile and allegations against "Savile and others".
  He is the 19th person arrested under the Yewtree probe.
summary: A 79-year-old man has been arrested on suspicion of sexual offences by Operation Yewtree detectives, Scotland Yard has said.