A police officer and two protesters have been injured in clashes in Kosovo a day after the opposition disrupted parliament with tear gas to protest against agreements with Serbia and Montenegro. Police said 10 protesters were arrested as a few hundred opposition supporters threw petrol bombs and other objects outside the parliament building in the capital Pristina. Opposition politicians disrupted Friday's session of parliament, opening tear gas canisters and hurling plastic water bottles at the speaker and Cabinet ministers. Kosovo declared independence in 2008, a move not recognised by Serbia.