Graphic content: The moment Russian envoy to Turkey was shot

A Turkish policeman crying “Aleppo” and “revenge” shot dead Russia’s ambassador to Turkey at an art exhibition in Ankara on Monday, in what Moscow said was a “terrorist act”.

A Turkish policeman crying “Aleppo” and “revenge” shot dead Russia’s ambassador to Turkey at an art exhibition in Ankara on Monday, in what Moscow said was a “terrorist act”.

This picture taken on December 19 shows Andrey Karlov (L), the Russian ambassador to Ankara, lying on the floor after being shot by a gunman (R) during an attack during a public event in Ankara.(AFP)

Andrei Karlov died of his wounds after the shooting, which occurred on the eve of a key meeting between the Russian, Turkish and Iranian foreign ministers on the Syria conflict.

Dramatic television footage showed a man in a dark suit and tie waving a gun and gesturing in the air at the Ankara exhibition hall. The state-run Anadolu news agency said the gunman had been “neutralised” in a police operation, without giving further details.

Soon after the attack, graphic photos and videos started doing the rounds on Twitter that captured the moment the envoy was attacked.

The attacker calmly stood behind the envoy, who was speaking at the exhibition.