Iranian Government spokesman Ali Rabiei in a message on Monday slammed terrorist attack in Kabul, Afghanistan, which claimed the life of his counterpart Zia Vedan.
In his message, Rabiei condoled with Afghan people and government over the deadly attack.
He described terror as a hateful and unacceptable tool for achieving political goals and will bring no result but to promote violence and chaos.
I assure Afghan brothers and sisters that Iran will stand by them in fighting terrorism, violence and occupation, he added.
Vedan's car was hit by magnetic bomb in Karte Naow on Sunday killing him and two other colleagues.
One of his colleagues was also injured.
Afghan Government has held Taliban responsible for the attack.