Kosovo opposition lawmakers have released tear gas to disrupt a parliamentary session to protest government deals with Serbia and Montenegro.

A few minutes after the start of Thursday's session, Speaker Kadri Veseli was obliged to suspend the session following the opening of a tear gas canister in the opposition seats.

It was the ninth such protest with tear gas by opposition lawmakers since September. They have also disrupted parliamentary sessions with pepper spray, whistles and water bottles to protest against a deal between Kosovo and Serbia giving more powers to ethnic Serbs in Kosovo. The opposition also rejects a border demarcation pact with Montenegro.

Last month, they opposed the election of the new president in parliament and also have contested it at the Constitutional Court.