Police in East Timor say protesters, believed to be the supporters of the Fretilin party, have thrown stones at officers, burned or destroyed 58 cars and damaged some houses during demonstrations against the move to exclude their party from the incoming government.
Police chief Longuinhos Monteiro says one person has been killed and four policemen have been injured in clashes in Dili, the capital.
Witnesses said police arrested at least 12 people on Sunday and that the violence continued on Monday.
Mr Montero says the protesters are believed to be the supporters of the Fretilin party, which finished second to Prime Minister Xanana Gusmao’s party in July 7 parliamentary elections.
The violence broke out shortly after Mr Gusmao said his party would set up a coalition with Democratic Party and Frenti-Mudanca, excluding the Fretilin from the government.