ERBIL, Kurdistan Region of Iraq – Iraqi Prime Minister Ali al-Zaidi on Tuesday condemned a drone attack targeting Kurdistan Region Prime Minister Masrour Barzani’s office in Erbil, saying such attacks “are unacceptable,” according to a statement from the Kurdistan Regional Government (KRG).

Barzani received a telephone call from Zaidi a day after the attack, during which the Iraqi premier said “these attacks against Iraq and the Kurdistan Region are completely unacceptable,” as condemnations continued to pour in from Kurdish, Iraqi and international actors.

Barzani thanked Zaidi for his follow-up and “stressed the importance of maintaining security and stability in Iraq and the Kurdistan Region,” according to the KRG statement.

Kurdish counterterrorism forces said two Iranian explosive-laden drones targeted the premier’s office in Erbil and the residence of the Region’s security chief. The attacks caused no casualties and purportedly involved the advanced Hadid-110 unmanned aerial systems.

On Monday, Zaidi ordered the formation of an investigative committee to uncover the details of the attack, tasking it with identifying its sources and origins. He ordered that the findings be announced publicly “at the earliest possible time, along with the disclosure of all circumstances surrounding the attack and the parties standing behind it.”

The Kurdistan Region has been repeatedly targeted over the past year by Iran and Iran-aligned armed factions, the latter of which Zaidi has demanded disarm by the end of September.

Condemnations poured in from Iraqi political parties following Monday’s attack.

Iraq’s ruling Coordination Framework, of which Zaidi is a member, also condemned “the terrorist attack” on Barzani’s office.

Iraq’s State of Law Coalition, headed by former Prime Minister Nouri al-Maliki, condemned the attack, calling it a “blatant violation,” emphasizing the importance of Iraq maintaining sovereignty “over all of its territory.”

Former Prime Minister Mohammed Shia’ al-Sudani’s Reconstruction and Development Coalition also condemned the attack in a statement to The New Region, saying it awaited Baghdad’s stance on the development and would issue a public statement once more details were made public.

The Sunni Taqadum Party reaffirmed that it would back “any resolution” proposed by Kurdish parties in the Iraqi parliament aimed at ending the attacks, while “strongly” condemning the strikes.

The Badr Organization condemned the aggression “in the strongest terms,” political bureau member Abu Mithaq al-Masari told The New Region earlier Monday, adding that the organization has repeatedly called for restricting arms to the state.

The National Wisdom Movement (Hikma) also “strongly” denounced the attack in a statement to The New Region.

Iraqi Foreign Minister Fuad Hussein on Monday demanded answers regarding the drone attack from his Iranian counterpart Abbas Araghchi during a phone call.

During the call, Araghchi “expressed his surprise at the occurrence of such an attack, explaining that he had no information indicating that the attacks were launched from Iranian territory, and stressing that there was no justification for such actions, given the positive and strong relations that bind the Iranian government to the Kurdistan Regional Government,” the Iraqi Foreign Ministry said.

“Fuad Hussein called on the Iranian side to issue an official statement clarifying the Islamic Republic of Iran's position on the attack and the parties or reasons behind it,” it added.

While Iran and Iran-backed armed groups claim the attacks chiefly target US interests in the Kurdistan Region, vital infrastructure has also been struck, including oil and gas facilities and residences of the Region’s leaders.

President Masoud Barzani said in late March that his residence was targeted five times, adding that he "remained silent to avoid provoking public anxiety and anger."

Kurdish security forces have also been the subject of attacks. In late March, six Kurdish Peshmerga soldiers were killed and 30 others injured in an Iranian ballistic missile attack in Erbil’s Soran administration.