McFadden bids to get his kids from Katona

Gallery: Life and times of Kerry Katona

A source said: "He is talking to his fiancée Delta Goodrem and is also consulting his lawyers to see what arrangement they can come to about his kids... he no longer wants them to stay with Kerry.

"He no longer feels that they are safe with her."

'Consulting lawyers': Brian McFadden

Kerry was secretly filmed apparently snorting cocaine at her Cheshire home, and she is now said to have drawn up a shortlist of suspects she believes could have planted the camera.

It's not the first time she's been at odds with Brian over their daughters — he banned her from filming the girls in her reality show for MTV last year.

Kerry admitted taking coke for a while after she split from Brian in 2004, and shocked This Morning viewers when she slurred her way through an interview last October.

Host Philip Schofield asked her if she'd been drinking, but she later said she had simply missed a dosage of her bi-polar medication.

Brian's bombshell is the latest blow for Kerry, who was today dumped from her £250,000-a-year Iceland deal, which was her main source of income.

Iceland said in a statement: "We have always stood by her.

However, following the most recent allegations, we feel it is impossible for Kerry to continue to work for us."

Gallery: Life and times of Kerry Katona