"The assassination of Hashem al-Mashhadani, a member of Azm Coalition in Baghdad, is a dangerous message," the Secretary-General of the Arab Project in Iraq and head of Azm Coalition, Khamis al-Khanjar, tweeted. "It represents the need to protect the democratic process, intellect, and activities of the public from uncontrolled weapons and terrorist groups."
A prominent Sunni alliance, the Azm Coalition is contesting parliamentary elections scheduled for October.
Khanjar said he is waiting for the killers of Mashhadani to be punished.
There have been a series of assassinations of activists and journalists in recent months in Iraq, with investigations yielding little to no results.
A Karbala activist was shot dead and a journalist in Diwaniyah was critically injured by unknown gunmen within 24 hours of each other in early May.
Parliamentary elections are scheduled for October 10, 2021.
