One of the Australian DJs who made a prank call to the London hospital where the Duchess of Cambridge was being treated during her pregnancy has admitted she "should have tried harder" to stop the call being broadcast.

Mel Greig said she and her family had received death threats after the hoax was linked to the death of nurse Jacintha Saldanha. The Bristol mother-of-two had put them through to the ward when they pretended to be the Queen and the Prince of Wales.

Ms Greig said: "When this first happened, I absolutely blamed myself, 100%.

"I felt like I had failed as a human being, to make someone feel that way, enough to take their own life. I'm slowly learning it's not all my fault but it's going to take me time to get to that point. I should have tried harder not to let that prank call air."

She and 2Day FM co-host Michael Christian called the King Edward VII Hospitalin December 2012 where the Duchess was being treated for severe morning sickness.