In a Sunday statement, Qassemi extended Iran’s condolences to the Afghan nation, government as well as the families of the victims of the deadly attack.
He also expressed hope that terrorism in all its aspects and forms would be eradicated soon in the region and the whole world through joint resolve and attempts by all states at bilateral, regional and international levels.
At least 45 people were killed and over 60 others injured earlier Sunday in a blast targeting a voter registration centre in Kabul.
Police say the explosion occurred when a bomber detonated explosives in Dasht-e Barchi area. The ISIS terror group has claimed responsibility for the attack.
Voter registration centres have been set up across Afghanistan in preparation for long-delayed parliamentary elections due to be held in October. The bombing is the fourth attack against the election process in less than a week.
Dasht-e Barchi is largely inhabited by members of the Shiite Hazara minority, which has been repeatedly targeted by ISIS terrorists.