BBC said:Relocation plan for Kirkuk Arabs
The Iraqi government is to encourage Arab settlers in the city of Kirkuk in the north of the country to return to their original homes further south.
The measure is called for in an article of the new Iraqi constitution dealing with the ethnically mixed city.
During Saddam Hussein's rule, Arabs were settled in the oil-rich province at the expense of Kurds and Turkomans.
A referendum on joining the other three provinces recognised as Iraqi Kurdistan is to be held this year.