and Citizenship press release stated: "Australia will work with PNG to expand the Manus Island Regional Processing Centre, as well as explore the construction of other regional processing centres in Papua New Guinea...The arrangements also allows for other countries (including Pacific Island states) to participate in similar arrangements in the future." The number of arrivals continued to climb, to 25,173 in the 2012–13 financial year, and approximately 862 asylum seekers died trying to reach Australia between 2008 and July 2013. In June 2013, Kevin Rudd toppled Gillard in another leadership spill, following weeks of polls indicating the ALP would be defeated at the next election. Operation Sovereign Borders A new policy on boat arrival deterrence, Operation Sovereign Borders, was launched by the new Liberal–National Coalition on 18 September 2013. Papua New Guinea The Regional Resettlement Arrangement between Australia and Papua New Guinea, colloquially known as the PNG solution, is an Australian Government policy in which any asylum seeker who comes to Australia by boat without a visa will be refused settlement in Australia, instead being settled in Papua New Guinea if they are found to be legitimate refugees. The policy includes a significant expansion of the Australian immigration detention facility on Manus Island, where refugees will be sent to be processed prior to resettlement in Papua New Guinea, and if their refugee status is found to be non-genuine, they will be either repatriated, sent to a third country other than Australia or remain in detention indefinitely. The policy was announced on 19 July 2013 by Australian Prime Minister Kevin Rudd and Papua New Guinean Prime Minister Peter O'Neill, effective immediately, in response to a growing number of asylum seeker boat arrivals. The then Opposition Leader Tony Abbott initially welcomed the policy, while Greens leader Christine Milne and several human rights advocate groups opposed it, with demonstrations protesting the policy held in every major Australian city after the announcement. Announcement In the fortnight prior to the announcement of the PNG solution, Rudd visited Indonesia for regular annual talks with Indonesian president Susilo Bambang Yudhoyono where they discussed asylum seeker issues, but played down expectations of a policy announcement. On 15 July, he and Immigration Minister Tony Burke visited Papua New Guinea to discuss asylum seeker policy, in light of a UN Refugee Agency report saying the Manus Island detention centre did not meet international standards. On 19 July 2013, Rudd, Burke