The Atomic Kitten singer was said to have been unaware of her husband’s arrest, which reportedly came after tens of thousands of pounds worth of jewels were allegedly stolen in a car-jacking incident.
As reported by The Sun, George has been bailed until later in the month.
George Kay and Kerry Katona
According to the newspaper, three men assaulted a driver, before making off with two bags, full of jewellery.
It's alleged that they then assaulted a man, after pulling him out of his Honda car and driving off in it, with the car later turning up in North London.
A source told The Sun on Friday: “Kerry doesn’t know that George has been arrested. When she finds out she will be heartbroken.
“It is the last thing she needs after the year they have had.”
Herts Police have confirmed that a 35-year-old man from Oxfordshire had been arrested, and three men, all from London, had also been held.
Last month, it was claimed that George had walked out on Kerry, after a string of furious rows, but they recently relocated to Sussex, with the move said to be acting as a fresh start for the couple.
However, they received a less than warm reception from their new neighbours, with Kerry’s daughter Lilly sharing an open letter on her Twitter page, urging them not to be too critical of her mum.