Pristina  - Kosovo's Prime Minister Hashim Thaci on Sunday expressed a wish for conciliation with Serbia, inviting Serbian President Boris Tadic to the former Serbia province.

Thaci made the invitation after a visit to Kosovo's Serb enclave of Caglavica, a suburb of the capital Pristina.

Communication between Pristina and Belgrade is "unavoidable" and is in the interests of Kosovo, said Thaci.

Thaci invited Tadic to his office in Pristina, adding that in accepting such an invitation, Tadic should recognize that he should be visiting an institution of the Republic of Kosovo.

Belgrade has consistently repeated that it would not recognize Kosovo's independence, which the former province's ethnic Albanian leadership proclaimed February last year.

Meanwhile, more than 50 people were reported injured in a violent demonstration by Serbs in the Kosovo town of Gnjilane, media reports out of Belgrade said.

Around 500 people blocked the Gnjilane-Kamenica road in protest against several days of lack of electricity, according to Kosovo police in Pristina.

Five police officers were injured when demonstrators threw stones at intervening police. dpa