Editor's note: The video included in this post contains graphic content and may be disturbing to some viewers.
The world watched in horror on Monday as an off-duty Turkish special forces police officer assassinated Russia’s ambassador to Turkey on live TV.
The gunman, identified as 22-year-old Mevlut Mert Altintas, was ultimately killed in a gunfight with Turkish security forces roughly 15 minutes after fatally shooting Russian Ambassador Andrey Karlov. Graphic photos later emerged supposedly showing the deceased gunman covered in blood.
Altintas was reportedly heard shouting “Allahu Akbar,” which means “God is great” in Arabic, and “We die in Aleppo, you die here!”
He also reportedly said in Turkish: “Don't forget Aleppo! Don't forget Syria!”
The shocking attack was intended to sour relations between Russia and Turkey, Ankara Mayor Melih Gokcek reportedly said.
Russian foreign ministry spokeswoman Maria Zakharova said Turkish authorities were conducting a “thorough, comprehensive investigation” and vowed that “murderers will be punished” and “terrorism won’t sustain,” according to CNN.
“We will fight it,” she added.
Some of Altintas' rantings were captured in the shocking video of the attack.
“Only death will remove me from here. Everyone who has taken part in this oppression will one by one pay for it,” he said, according to CNN.
Russian President Vladimir Putin said the “murder is clearly a provocation aimed at undermining the normalization of Russia-Turkish relations as well as at undermining the peace process in Syria promoted by Russia, Turkey, Iran and other countries interested in promoting settling the crisis in Syria.”
Putin vowed to step up the fight against terror in response to the assassination.