TEHRAN (Press Shia Agency) – The United Nations condemned an attack on the Russian ambassador to Ankara, who was shot and killed in an attack at an art gallery in the Turkish capital on Monday.

"We condemn the gun attack on the Russian ambassador to Turkey. There can be no justification for an attack on a diplomat or an ambassador," UN spokesman Stephane Dujarric said. "We hope that the perpetrator will be brought to justice."

Russia’s ambassador to Turkey, Andrey Karlov, was shot dead at an art exhibition in the Turkish capital of Ankara on Dec. 19, Russian Foreign Ministry has confirmed.

Russian Foreign Ministry spokesperson Maria Zakharova later announced that Karlov succumbed to his wounds.

Meantime, Turkish Foreign Ministry has also confirmed Karlov’s death, in a written statement, adding that the perpetrators will face justice for their action.

The ministry designated the attack on Karlov as a "terror organization."

Accompanied by Health Minister Recep Akdağ and Defense Minister Fikri Işık, Interior Minister Süleyman Soylu later announced that the attacker was a 22-year-old police officer identified as Mevlüt Mert Altıntaş.