An Iraqi court has ordered the arrest of organizers of the Kurdistan secession referendum. An Iraqi judicial official says a court in the capital Baghdad has issued arrest warrants for the chairwoman and two other members of the referendum commission.

The court has acted at the request of Iraq’s National Security Council, which is headed by Prime Minister Haider al-Abadi.

The organizers held the secession referendum on September 25, despite the Supreme Court’s warning that the vote would contravene the constitution.

Baghdad has reacted to the vote by severing ties with the Kurdistan region.

Neighboring countries have also has cut international air links to the Kurdish region.