Melanie Sykes has been arrested and cautioned over an assault on her husband.
The 43-year-old TV presenter spent the night in custody before admitting the offence and accepting a caution earlier today. She and Jack Cockings, 27, who met on Twitter, were married in May.
A Scotland Yard spokesman said: "Police were called approximately 9.45pm on Tuesday, 26 November to a residential address in Hampstead following reports of an assault.
"A 43-year-old woman was arrested on suspicion of common assault and taken to a north London police station.
"She has since been given a caution for common assault. The male victim did not require hospital treatment."
A spokesman for mother-of-two Melanie said he had no comment on the matter.
The star, who first found fame in an advert for Boddingtons beer, met Jack online where he tweets as @bespokespartan after he asked her out on a date. His Twitter page appeared to have been deactivated today.
In an interview earlier this year, Melanie said: "'There are people who will always be cynical about my relationship with Jack because of how we got together. But he makes me happier than I've ever been and if I'm happy, my boys are happy, it's a big circle - and that's all that matters.''
Former model Melanie has appeared on shows including Let's Do Lunch with Gino and Mel, The Big Breakfast and Today with Des and Mel. She also had a stint on Radio 2 with Alan Carr.
She has two children from her marriage to Italian actor Daniel Caltagirone, which ended in 2009.
