A nurse who was duped by a radio prank caller pretending to be the Queen and looking for information about Kate Middleton's condition has been found dead in what appears to be a suicide, British media report.

The woman, whose name hasn't been released, made international headlines this week when she was featured on Australian radio, seemingly believing an Australian woman with a fake British accent when she claimed to be Queen Elizabeth II.

Host Mel Greig said: "Oh, hello there. Could I please speak to Kate please, my granddaughter." She answered "Oh yes, just hold on ma'am."

The nurse, who was staffing the nursing switchboard at the King Edward VII hospital, put the call through to Kate's nurse, who then detailed the pregnant duchess's condition to the pranksters.

Audio of the prank went viral, and the hosts have since apologized.

On Friday, London police found a woman dead in her home, seemingly by suicide.

British media report it was the switchboard nurse.