As neighbors and brothers, Iran stands by the great patient Afghan people in this difficult time, Amirabdollahian said through a Twitter post.
Further, Amirabdollahian expressed condolences to the families of the victims.
He went on to say that Afghanistan would soon receive aid cargos from the Islamic Republic of Iran.
A strong earthquake measuring 6 on the Richter scale rocked the vicinity of the city of Khost in southeast of Afghanistan.
According to the Afghan officials, 920 have been killed and 620 others have been wounded.
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