Erbil-Baghdad talks collapse on eve of referendum
The Kurdish delegation met with representatives of the Shia ruling coalition in Baghdad, and with the Iraqi president, Fuad Masum, himself a Kurd, whose role is largely ceremonial.
Rozh Nuri Shaweys, the head of the Kurdistan delegation, said they visited Baghdad to explain the position of the Kurdistan leadership.
The KRG has said the vote is intended to give its autonomous territory a legitimate mandate to achieve independence from Iraq through dialogue with Baghdad and neighbouring powers Turkey and Iran.
Ankara and Tehran are worried that the vote could revive the separatist aspirations of their own Kurdish populations.
Executive powers are concentrated in the hands of the prime minister, Haider al-Abadi, a Shia. Abadi's office said he didn't meet the delegation.
Hemin Hawrami, an assistant to Barzani, tweeted: "Our delegation in Baghdad to deliver a message: We're ready for talks after 25/9."
Turkey said on Saturday it would take security and other steps in response to the planned referendum, which it called a "terrible mistake".
The Turkish parliament convened for a debate and vote on extending a mandate that authorises Turkish troop deployments to Iraq and Syria, and Prime Minister Binali Yildirim alluded to possible military moves.
The United States has urged the KRG to cancel the vote, while the UN Security Council warned in a statement of its "potentially destabilising" impact on Iraq.
Washington and other Western powers say the vote distracts from the fight against the Islamic State militant group.
The KRG counters that its Peshmerga fighters have made a crucial contribution to that fight.
The first round of talks between the Kurdistan delegation and the Shia Alliance took place last month and ended without any real progress.
Agencies contributed to this report.