Kosovo's opposition used tear gas at the offices of the parliament's speaker on October 23 to protest against the government's deals with Serbia and Montenegro.
The attack by the lawmakers from Vetevendosje (Self-Determination Movement) forced the evacuation of parliamentary staff but no injuries were reported.
It's the latest in a series of violent incidents by the opposition angered by deals with Serbia to give more powers to Serb-dominated areas in Kosovo, and with Montenegro on border demarcation.
The opposition confirmed in a statement that it used tear gas at Kadri Veseli's offices before the start of the session.
The party had demanded that the session not be held unless the government backtracked from the deals.
Last month, opposition members have set off tear gas inside the chamber and thrown eggs at the prime minister.
Earlier this week President Atifete Jahjaga failed to convince the political parties to negotiate to resolve the crisis.
Based on reporting by AP and balkaninsight.com