Former pop singer Kerry Katona has been bailed by the British police after being arrested and questioned on suspicion of assaulting her accountant. The 28-year-old allegedly assaulted David McHugh at his business premises in Warrington yesterday. She was later arrested by the police and was released early this morning pending further investigations. Katona was also cautioned this week for possessing cocaine after a British tabloid newspaper published photographs of her snorting the drug at her home.