At least 16 people were killed, and 73 more were wounded:
Demonstrators also gathered in Basra, Dhi Qar, Karbala, and Qadisiya.
Through a spokesman, Grand Ayatollah Ali al-Sistani again called on the government to reform the electoral laws in a bid to stop the violence.
In Haftanin and Hakurk, Turkish warplanes targeting Kurdistan Workers’ Party (P.K.K.) guerrillas killed five of them during airstrikes.
A roadside bomb in Hammam al-Alil wounded two people.
A bomb wounded one person in Taza.
Six militants were killed in Badush.