Officers from Operation Yewtree - the investigation of sex abuse claims surrounding Jimmy Savile and others - arrested the suspect at 7.15am today at an address in Cambridge.
A Scotland Yard spokesman said a man was arrested on suspicion of sexual offences and has been taken into custody locally.
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It's been a colder start to the day, especially in rural areas of Britain.
A viral video in which a French woman claimed she was trying to find the father of her baby has been confirmed as a hoax.
Labour's Chuka Umunna urged his party to unite around its new leader in an apparent offer of reconciliation to left-winger Jeremy Corbyn.