Dateline Pacific morning edition for 29 June 2017

During the 75th anniversary of the sinking of the Montevideo Maru a historian says far too little is known about Australia's worst maritime disaster; there is still dissension among family members opposed to the chosen candidate for the high paramount chief title of Malietoa in Samoa; Papua New Guinea's former prime minister Sir Mekere Morauta says the national election is being rigged; an anti torture protestor in Fiji has been released after two days of questioning; the latest attack on a Manus Island detainee casts doubt over refugee resettlement in PNG