Prank call to Duchess's hospital is latest controversy at Australian radio station Last November he was again strongly criticised for reportedly calling a young female journalist a "piece of ---- and a "fat ----" and telling her "to watch your mouth or I'll hunt you down" after she reported on the negative reception his TV show had received the night before. Australia's media watchdog, the Australian Communications and Media Authority (ACMA) carried out an investigation and found the comments were deeply derogatory and offensive and amounted to a breach of the radio code of practice. The watchdog has received complaints about the joke played by 2Day FM yesterday, which the radio station hailed on its website as the "Biggest Royal Prank Ever" and the "Prank That The World is Talking About." The ACMA has not said whether disciplinary action will be taken after the King Edward VII Hospital in London breached patient confidentiality by disclosing details about Kate's health to DJs posing as the Queen and the Prince of Wales. The station's spokeswoman apologised "for any inconvenience caused by the inquiries to Kate's hospital." The prank was meanwhile labelled "childish and embarrassing" by almost two-thirds of Australians in an online poll. The backlash came as Kate left hospital after being admitted on Monday suffering from hyperemis gravidarum, or severe morning sickness. The radio hosts, Mel Greig and Michael Christian, would not comment on the reaction to the stunt but were due to go to air later on Thursday in Australia.