AP photographer Burhan Ozbilici's picture of the gunman gesturing after shooting Russian Ambassador to Turkey Andrei Karlov, at a photo gallery in Ankara.

GRAPHIC WARNING: This story contains images that some readers may find disturbing.

AP photographer Burhan Ozbilici kept working even as a gunman shot Russian ambassador Andrei Karlov to death just metres away.

He ended up capturing visceral images of Karlov's assassination.

AP photographer Burhan Ozbilici continued his work in the face of this. pic.twitter.com/mGdH37ZMei — Micah Grimes (@MicahGrimes) December 19, 2016

Karlov, 62, was shot at close range by a gunman shouting: "Allahu Akbar (God is Great). We die in Aleppo, you die here!"

According to Russian TV, the ambassador was attending an exhibition called "Russia as seen by Turks".

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