Papua New Guinea has pledged four million US dollars in support for flood-ravaged Australia.
The Acting Prime Minister Sam Abal says he has written to the Australian Prime Minister Julia Gillard expressing sympathy and condolences to victims of the ongoing tragedy.
Mr Abal says Australia's steadfast generosity and charity must and should be returned whenever the need arises.
PNG, which receives about 450 million dollars a year from Australia in aid, has also offered military and logistical help.
