The Sunni insurgent group Jundallah called on its supporters to take up arms against Iran following failed peace negotiations with Tehran, al-Arabiya reports. Jundallah in a statement received by al-Arabiya said rare talks with the government of Iran broke down because Tehran held off on responding to demands from the group.

"The movement raised basic, legitimate, logical and reasonable demands in order to solve problems in the (Baluchistan) region and continued to negotiate in good faith and committed throughout this period to an undeclared truce and to the halt of all military operations," the group said in its statement.

The Pakistan-based Jundallah said it carried out a June attack at the Ali Ibn Abi Taleb mosque in Sistan-Baluchistan province that killed as many as 21 people and wounded more than 70 others.

Pakistani ties with Iran soured in the wake of an Oct. 19 bombing at a conference between Shiite and Sunni groups in southeastern Iran. Jundallah claimed responsibility for the attack that killed several senior commanders of Iran's Revolutionary Guard Corps.

The militant group called on minority ethnic groups to join their fight against the Iranian government but said it would give Tehran a "last opportunity" to respond before it resumed its militant campaign.