A spokesperson for the Met said: "We are not discussing the name of the individual."
Harris was originally interviewed under caution by Scotland Yard officers on Operation Yewtree last November, five days after they visited his home in Berkshire when he was not there. The Met said in an earlier statement: "The man from Berkshire was interviewed under caution on suspicion of sexual offences after attending south London police premises by appointment. On 24 November 2012 officers had executed a search warrant at an address in Berkshire."
It is understood that Harris was arrested last month but not charged with any offence. He has been bailed until May.
After Harris's arrest in March days before his 83rd birthday, a Scotland Yard spokesman said: "An 82-year-old man from Berkshire was arrested by officers on Operation Yewtree on suspicion of sexual offences. He has been bailed to a date in May pending further inquiries.
"The individual falls under the strand of the investigation we have termed 'others'."
Several high-profile figures have been arrested in connection with the investigation including the PR consultant Max Clifford, the comedian Freddie Star, the radio DJ Dave Lee Travis, the former TV producer Wilfred De'Ath and the comedian Jim Davidson. They all deny any wrongdoing and De'Ath was released without charge last month.