Australia’s Prime Minister Scott Morrison said on Monday Canberra is seeking an apology from Beijing about a tweet containing a false image of an Australian soldier holding a knife to the throat of an Afghan child.

Morrison said Australia was seeking the removal of the “truly repugnant” image posted on Monday by Zhao Lijian, a spokesman at the Ministry of Foreign Affairs.

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“It is utterly outrageous and cannot be justified on any basis... The Chinese government should be utterly ashamed of this post. It diminishes them in the world’s eyes,” Morrison told media at a press briefing.

He said countries around the world were watching how Beijing responded to tensions in Australia’s relationship with China.