MOSCOW (Sputnik) — Baghdad has to rely on the Constitution to regulate relations with Kurdish authorities, Hadithi noted.
"Any decision that concerns the future of Iraq must take into consideration the constitutional texts as it is an Iraqi decision… All Iraqis must have their say over the future of their homeland. It is not possible for one party to determine its fate independent of others," Hadithi was quoted as saying by the Rudaw news agency.
The referendum will be held throughout Iraqi Kurdistan, as well as in disputed territory, such as the oil-rich city of Kirkuk, which was rescued from Daesh takeover by Kurdish Peshmerga forces after Iraqi forces fled the city in 2014.
Iraqi Kurdistan is nation's only autonomous region. The autonomy agreement between the Kurdish opposition and the Iraqi government was reached in March 1970 after military clashes. The Iraqi constitution of 2005 defines the Kurdistan region as a federal entity of Iraq.