On Friday, a bomb went off at the offices of Ayatollah Seyyed Mahmoud al-Hassani in the holy city of Karbala, the daily Dar-ol-Islam wrote on Sunday.
The bomb was planted inside the building by unknown assailants, the report said, adding that no one was in the building at the time of the attack.
Ayatollah al-Hassani is an outspoken critic of Iranian meddling in Iraq and has called for Irans embassy in Baghdad to be closed.
In June, his supporters held a protest outside the Iranian consulate in Karbala and torched Iran’s consulate in the southern Iraqi city of Basra.
They were protesting against a program aired on Irans state-run satellite channel al-Kowthar against the Shiite cleric.
Iran has at least seven Arabic-language television stations and more than two dozens journals spreading its propaganda in Iraq.
