Iraq received "an official verbal message" from Iran shortly after midnight and prior to the missile attacks, according to a statement from Iraqi Prime Minister Adil Abdul Mahdi.
The statement said:
Shortly after midnight on Wednesday 8/1/2020, we received an official verbal message from the Islamic Republic of Iran that the Iranian response to the assassination of the martyr Qassem Soleimani had begun or would begin shortly, and that the strike would be limited to the whereabouts of the US military in Iraq without giving the exact location.
Abdul Mahdi said that once Iraq received information from the Iranian side, they warned Iraqi military leaders "to take the necessary precautions."
The missiles hit Iraq between 1:45 am and 2:15 am local, according to an earlier statement released by Iraqi military.
Abdul Mahdi was making the necessary internal and external contacts in an attempt to contain the situation and not enter into an open-ended war, his office said, adding: "Iraq and the region will be among the first victims."
"Iraq refuses any violation of its sovereignty and attacks on its lands, the government continues its efforts to prevent escalation. This serious crisis threatening the region and the world with a devastating war," the statement read.