Local media reported that the incident took place in Qadisiyah district on Sunday, with both security forces and civilians believed to be among the casualties.
Separately, gunmen raided a checkpoint in Najaf’s al-Meshkhab area, but the number of possible casualties remains unclear, Press TV reported.
Meanwhile, local sources have reported several mortar attacks around Najaf Province.
The Daesh (ISIL or ISIS) terror group has claimed responsibility for the bomb attack. The terrorists have in recent months increased their acts of violence across Iraq in revenge for the blows they have been taking from Iraqi armed forces in the battle for the liberation of Mosul.
On Saturday, the capital Baghdad also witnessed bloodshed. At least 28 people lost their lives in a bomb explosion at a crowded market. The attack was later claimed by Daesh.
In another development on Saturday, an improvised explosive device went off in the district of Yarmuk in western Baghdad, leaving a civilian wounded.
Two more people were also injured after a magnetic bomb exploded on al-Qanat Highway in eastern Baghdad
Meanwhile, Baghdad Operations Command spokesman Brigadier General Saad Maan said that five booby-traps had exploded in northwestern Baghdad, killing one person and hurting six others.
Data from monthly reports issued by the United Nations Assistance Mission for Iraq (UNAMI) shows that acts of terrorism killed a total of 12,038 Iraqis and injured 14,411 others in 2016.