Ahmad al-Assadi, the spokesman of the Fatah Alliance, told journalists on Thursday in his office in central Baghdad that government probes would name Israel.
"Some of the government investigations have reached a conclusion that the perpetrator behind some of the attacks is absolutely, certainly Israel," he said, declining to provide details on the evidence, The Middle East Eye reported.
"The government is preparing sufficient evidence and documents to complain to the (UN) Security Council. It won't submit a complaint against an unknown entity."
His remarks came in the wake of recent airstrikes in Iraq against the positions of pro-government Popular Mobilization Units (PMU), also known as Hashd al-Sha’abi.
Daesh unleashed a campaign of death and destruction in Iraq in 2014, overrunning vast swathes of territory in lightning attacks. Iraqi government forces and allied fighters then launched operations to eliminate the terror outfit and retake lost territory.
The PMU had a key role in flushing Daesh out of the areas it had occupied in Iraq.