The Democratic Society Party (DTP) also criticized Prime Minister Recep Tayyip Erdogan for failing to follow up on promises for a democratic solution of the Kurdish conflict and urged both the army and separatist Kurdish rebels to halt armed action in the conflict-torn southeast.

"Violence should not be seen as an option in politics," the statement said, stressing that the Kurdish minority did not have ambitions to break away.

"All restrictions on the Kurdish language should be lifted and it should be given the status of an official language along with Turkish in regions where Kurds live.

"The political parties law, primarily the election threshold, should be revised so that everybody can use their right to political representation," it said.

Even though Kurds have been able to win parliamentary seats on the ticket of mainstream parties, pro-Kurdish parties have failed to overcome the 10-percent national threshold required to enter parliament.

The DTP also reiterated a long-standing appeal for a general amnesty for rebels from the outlawed Kurdistan Workers' Party (PKK), which has been waging a bloody separatist campaign in the southeast since 1984.

Unrest in the region has increased since June 2004, when the PKK, considered as a terrorist group by Turkey as well as the European Union and the United States, called off a five-year unilateral ceasefire.

Keen to boost its democratic credentials and join the EU, Turkey has in recent years lifted the emergency rule in the southeast and allowed the Kurdish language to be taught at private courses and used in public broadcasts.

It is also compensating villagers who have been displaced and suffered material losses during the conflict.

But Kurdish activists say the reforms are inadequate.

The conflict has claimed some 37,000 lives, ravaged the already meager economy of the southeast and forced millions of already poor peasants to migrate in mass into urban slum areas.