The information is taken from a letter written by one of the compound's barricaded detainees, in anticipation of an expected police assault.
"All asylum seekers on Manus Island in [the] hunger strike ask you to hand over our medical records to organ donation organization[s] in case of our fatalities inside the cage," the letter reads, as quoted by ABC.
The water supply to the detention center has been cut and local police are preparing for an assault on the protesters, according to ABC.
More than 700 people, or over two-thirds of the center's population, are refusing food, in an escalation of the detainees' plight. Last week, an asylum seeker swallowed three razor blades to protest the length of stay of his detention and the conditions for asylum seekers at the facility, according to Guardian Australia, which added that 15 detainees had sewn their lips shut.
The Manus Island Regional Processing Center, used by Australia to detain undocumented immigrants, is located in Papua New Guinea, but is run by a private company hired by the Australian government.
Asylum seekers are asking the Australian government to either give them refugee status or hand over their cases to the United Nations High Commissioner for Refugees (UNHCR). They are afraid of being forcibly resettled in the local community in Papua New Guinea, insisting that the local population is hostile toward immigrants.
Over 20,000 asylum seekers arrived in Australia by boat in 2013, according to the Refugee Council of Australia. Most of them, traveling via Indonesia, originated from Afghanistan, Iran, Iraq and Sri Lanka.