Officers from Scotland Yard’s Operation Yewtree have arrested Paul Gambaccini, the BBC broadcaster, on suspicion of historical sexual offences.
The 64-year-old was held at his home in south London on Tuesday morning, answering questions before being released on bail.
Gambaccini has since confirmed his arrest, but has denied the allegations.
A statement released by the broadcaster read: "On Monday night, 28 October, I attended an excellent production of the Kander and Ebb musical, the Scottsboro Boys, at the Young Vic theatre. It concerned a group of black men in Alabama in the 1930s who were falsely accused of sexual offences. Within hours, I was arrested by Operation Yewtree. Nothing had changed, except this time there was no music."
A spokesman for Gambaccini said: "Mr Gambaccini was interviewed by Operation Yewtree officers about historic allegations. He answered their questions and was co-operative. He denied all allegations."
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The BBC confirmed that Gambaccini would not be presenting his Radio 2 show on Saturday. A spokesman for the broadcaster said: "Paul Gambaccini has decided that, in light of today's media attention, he would rather not be on air at present and we respect that decision.
"Therefore, Paul will not be presenting on BBC Radio in coming weeks and replacement programmes for the period will be announced soon." The replacement show on Radio 2 tomorrow will be Johnnie Walker Meets Art Garfunkel.
A police spokesman refused to confirm the identity of the arrested man, but said: "The man was arrested at an address in south London on suspicion of sexual offences and taken into police custody. "He falls under the strand of the investigation we have termed 'others'."
Police confirmed that another man, aged 74, was also arrested as part of the investigation. Officers said both have been bailed to a date in early January pending further inquiries.
Gambaccini hosts a weekly show on BBC Radio 2 and was due to present a 30-minute documentary for Radio 4 about the music world's reaction to the assassination of President John F Kennedy, to coincide with the 50th anniversary of his death.
The presenter was highly vocal last year in the wake of Savile's years of sexual abuse being made public, and said it was known among BBC staff that the late presenter targeted vulnerable, ''institutionalised'' young people. He also spoke of rumours that his former BBC Radio 1 colleague had been a necrophiliac.