Kurds seize two large oil fields, leave Iraqi govt
Kurdish peshmerga forces are said to have seized control of production facilities at Bai Hassan and Kirkuk.
Kurdish MPs withdrew from Iraq's central government, after Prime Minister Nouri Maliki accused the Kurds of harbouring extremists.
Kurdish officials, including Kurdistan Region leader Massoud Barzani, say they view independence of areas under Kurdish control as their right.
Tensions came to a head when Prime Minister Maliki said on Wednesday that the Kurdish provincial capital Irbil was a haven for Isis fighters.