This report documents human rights violations which occurred in 1989 and 1990 on the island of Bougainville, a part of North Solomons Province, Papua New Guinea, where the government faced armed opposition from the Bougainville Revolutionary Army (BRA). In 1988 the BRA began a campaign seeking the secession of Bougainville and substantial financial compensation for land occupied by the Bougainville Copper Ltd mine and for environmental damage it had caused. Between early 1989 and March 1990, when government security forces were withdrawn from Bougainville, Amnesty International obtained detailed reports of torture and ill-treatment and of apparent extra-judicial executions by government forces.