The New York Post has provoked outrage in the US by publishing a graphic image of American journalist James Foley about to be executed on its front page.
The Post, edited by Australian journalist Col Allan, published an image of Foley with a knife held flush against his throat, above the headline 'SAVAGES'.
Fairfax Media has declined to reproduce the graphic front page image on this story, but readers can view it here (warning, graphic image).
The front page came after a propaganda video emerged on YouTube showing the gruesome beheading of Foley, 40.
His masked executioner, speaking English with a British accent, said it was in retaliation for US air strikes in Iraq.
Many worldwide media organisations, including this one, ran still shots from the video but only well before the murder.
Once the video was made public, momentum quickly built online to campaign against sharing it - to prevent giving the Islamic State publicity.
The hashtag #ISISmediablackout quickly gained traction on Twitter after the five-minute YouTube video - since taken down - showed Foley on his knees before a black-robed man.
On Wednesday, Twitter's chief executive announced on the micro-blogging platform it was actively suspending the accounts of people who continued to share the video.
"We have been and are actively suspending accounts as we discover them related to this graphic imagery. Thank you," Dick Costolo wrote.
Many users, including the US Muslim Public Affairs Council, argued that sharing images would help the terrorists deliver their propaganda.
- Sydney Morning Herald