The Iraqi government said on Thursday it would not hold talks with the Kurdish autonomous region on reopening its airports and providing dollars for its banks, unless the Kurds commit to "Iraq's unity".
Iraq's central government imposed a ban on direct international flights to the autonomous Kurdish region after the Kurds held a Sept 25 referendum on independence, which Baghdad says was illegal. It is calling for its neighbours to shut the landlocked region's borders.
Among other measures to isolate the Kurdish region, Baghdad stopped selling dollars to four Kurdish-owned banks and called for a halt to its independent crude oil sales.
The Kurds have repeatedly called for negotiations following the referendum in which an overwhelming majority voted for independence.