Tony Abbott has been sworn in as Australian prime minister at a ceremony in Canberra.
Australia's Prime Minister-elect Tony Abbott has vowed to limit foreign aid and curb greenhouse gas reduction measures in a bid to help the country's economy.
The money saved is to be invested in road projects in Sydney, Melbourne and Brisbane.
Opponents and aid groups say the move is short-sighted and goes against Australia's image of global cooperation.
Mr Abbott also plans to visit Indonesia soon to discuss plans for the Australian navy to turn back Indonesian fishing boats carrying asylum seekers hoping to reach Australia.
David Cameron has spoken to and congratulated the new Australian Prime Minister elect, Tony Abbott, Downing Street has said.
– Downing Street spokesperson
The Prime Minister offered his warmest congratulations to Prime Minister-elect Abbott and spoke of the very strong links between the two countries.
Prime Minister-elect Abbott agreed and stressed his full support for the United Kingdom, saying that he very much looked forward the closest possible cooperation during his time in office.
The call lasted a few minutes and both leaders agreed to talk in more detail about policy issues once the initial excitement of winning the election had subsided.
Tony Abbott has told supporters he looks forward to forming a competent government, as his Liberal-National coalition swept to victory in Australia's general election.
"I now look forward to forming a government that is competent, that is trustworthy, and which purposefully and steadfastly and methodically sets about delivering on our commitments to you, the Australian people," he said.
Australia's Prime Minister Kevin Rudd has conceded defeat to the conservative opposition in national election.
He said: "As your PM and as your parliamentary leader of the great Australian Labor Party I accept responsibility. I gave it my all but it was not enough for us to win."
Australia's Prime Minister Kevin Rudd has conceded defeated in the country's general election.
Addressing supporters, he said: "A short time ago I telephoned Tony Abbott to concede defeat at these national elections. As PM of Australia I wish him well now in the high office of PM of this country."
Australia's Broadcasting Corporation has called the country's general election for opposition leader Tony Abbott.
Early exit poll numbers suggest the Labor Party government is facing strong swings against it in New South Wales, Victoria, Queensland and Tasmania, the broadcaster reports.
A senior lawmaker in Australia's ruling Labor Party has said the opposition has won the election, the Associated Press reports.
Counting of votes in Australia's general election is underway in the eastern states, where the governing Labor Party appears on track to be swept from power.