Nigella Lawson's husband Charles Saatchi cautioned by police

Melbourne: Celebrity cook Nigella Lawson`s billionaire husband, Charles Saatchi, has admitted that he assaulted his wife by choking her in public during a heated fight at the Scott`s restaurant in Mayfair.

Earlier he had described his act as merely a `playful tiff` with no grip during a discussion where he was trying to `emphasize` a point, the Herald Sun reported.

Saatchi was interrogated for five hours at Charing Cross police station about the week old incident, where he acknowledged his mistake and was handed a formal caution.

A police spokesman confirmed that the 70-year-old man voluntarily attended a Central London police station and accepted a caution for assault.

Despite the attack , the couple still seems to be together as they were seen dining at the same restaurant and sat at the same place where a week earlier the apparent assault occurred.