The footage recently posted on Mashreghnews website shows members of the al-Qaeda-linked Takfiri group gunning down Shia civilians in drive-by shootings.
The terrorists are seen opening fire on Iraqi Shias travelling in their cars or walking by in the streets.
After spraying their victims’ vehicles with bullets, the terrorists stop their cars and shoot the occupants yet again at point-blank range in an apparent bid to make sure the ill-fated victims are dead.
The footage also includes a scene where the terrorists riddle a pedestrian with bullets before his blood-covered body falls to the ground.
Takfiri groups, including ISIL, are reportedly coming to Iraq from neighboring Syria and Saudi Arabia to undermine security in the country.
Iraq is currently witnessing a wave of violence unprecedented in recent years.
Official figures show that more than 1,000 people, mostly civilians, were killed and nearly 1,400 others injured in violent attacks across Iraq in April. According to the United Nations, almost 9,000 people were killed in 2013.
Iraqi Prime Minister Nouri al-Maliki has said Saudi Arabia and Qatar are responsible for the security crisis and growing terrorism in his country, denouncing the Al Saud regime as a major supporter of global terrorism.
The government in Iraq has also blamed Riyadh for the chaos, saying Saudi Arabia is funding and arming militants fighting against Iraqi forces in the country’s western areas, including Anbar Province.