Share in Southern Cross Austereo, the company which owns radio station 2DayFM, have shed 5% of their value after a British nurse fooled in a radio prank was found dead on Friday.

On Sunday the company suspended all advertising pending an investigation. Earlier that day, Telstra and Coles had suspended their advertising with the network over the prank, which involved two radio presenters calling King Edward VII hospital in the United Kingdom while impersonating the Queen.

One of the women fooled into passing on the call, nurse Jacintha Saldanha, is believed to have committed suicide.