The grenade struck one of the vehicles in a convoy accompanying the Iranian president. Ahmadinejad was not injured in the attack, the report added.
The explosion injured a few journalists who were there to cover Ahmadinejad.
The blast took place as Ahmadinejad was about to address a crowd. However, he gave his speech even after the attack, the report added.
However, Iran presidential office have denied any such assassination bid, the report stated.
Image: Iranian President Mahmoud Ahmadinejad
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