PRISTINA : Opposition MPs in Kosovo disrupted the first parliamentary session of the year on Friday with what has become their commonplace method of protest - releasing tear gas in the chamber.

Angry about a government deal with Serbia and demanding snap elections, the united opposition has effectively blocked parliamentary proceedings since October with their tear gas protests.

"The people have turned their backs on the regime and the government must resign and respond to the people's will," Visar Ymeri, head of the Self-Determination party, told MPs before the session began and the first gas canister was opened.

Police officers in gas masks tried to recover the canister to prevent the gas spreading through the chamber but they were prevented by opposition MPs.

The session was eventually suspended after deputies began to flee during a hurried vote - despite calls from the parliamentary speaker, also donning a gas mask, for them to continue with proceedings.

Two attempts to restart the session failed as they came up against more tear gas and 18 MPs were banned from the chamber, four of them forcibly removed by police.

Another attempt to resume proceedings would take place at 3:00pm (1400 GMT), the parliamentary press office said.

The opposition is against a deal with Belgrade, backed by the European Union, to create an association giving greater powers to Kosovo's Serb minority. It fears the plan will deepen Kosovo's ethnic divisions and increase the influence of Serbia, which does not recognise Kosovo's sovereignty.

Protesters who have taken to the streets in recent months also accuse the authorities of widespread corruption, lagging development and a disregard for Muslim-majority Kosovo's 1.8 million people.

Several hundred opposition supporters gathered on Friday outside the parliamentary building in Pristina, sealed off by special riot police units, and chanted: "Down with the government".

"The only solution we accept now is elections, free elections," Self-Determination activist Yll Hoxha told the crowd.

Foreign minister and Deputy Prime Minister Hashim Thaci described the chaotic scenes inside as "a continuation of the primitive and ugly behaviour" of the opposition. "We appeal for calm, prudence and responsible behaviour," he told reporters.

Friday marked the seventh tear gas protest by MPs, who have also thrown eggs, fired pepper spray and blown whistles in parliament in recent months.

Thousands of protesters marched peacefully through Pristina on Wednesday, the eighth anniversary of Kosovo's independence from Serbia, calling for the government's resignation and new elections.

Kosovo's pro-independence ethnic Albanian rebels fought a war against Serb forces in the late 1990s, which ended after a NATO bombing campaign against Serbia. The deal between Pristina and Belgrade was reached during EU-mediated talks to "normalise" relations.