Fiji's Sitiveni Rabuka has become the country's prime minister after a coalition of parties voted to support him in a secret parliamentary vote, signalling an end to Frank Bainimarama's 16 years in power.

The appointment of Mr Rabuka ends 10 days of uncertainty after country's the election delivered a hung parliament.

Fiji's Social Democratic Liberal Party (SODELPA) on Friday voted to form a coalition with Mr Rabuka's People's Alliance and the National Federation Party.

The deal was designed to dislodge Fiji First's Mr Bainimarama as prime minister.

Mr Bainimarama has led the Pacific archipelago since a 2006 coup.

Held on Saturday, the secret parliamentary vote for prime minister was closer than had been expected, with 28 members of parliament voting for Mr Rabuka while 27 voted in support of Mr Bainimarama.

The coalition holds 29 seats in parliament, indicating that one member had broken ranks to vote in favour of the former prime minister.

Fiji has been pivotal to the strategically located South Pacific's response to increasing competition for influence between China and the United States. Mr Rabuka has said he favours Western-style democracy.