Reykjavik (AFP) - Icelanders voted on Saturday in a snap election that could see the anti-establishment Pirate Party form the next government in the wake of the Panama Papers tax-dodging scandal and lingering anger over the 2008 financial meltdown.

Voters are expected to punish the incumbent coalition after the Panama Papers revealed a global tax evasion scandal that ensnared several senior politicians and forced former prime minister Sigmundur David Gunnlaugsson to resign.

Although the current government of the conservative Independence Party and the centrist Progressive Party survived the scandal, it promised a snap election six months before the end of its term in spring 2017.

"Today, general elections take place because of corruption within the governing parties," the Pirate Party said in a statement.

"The Panama Papers revealed a great number of Icelanders within them, including three ministers in the current government. This is why we vote today," it added.

Prime Minister Sigurdur Ingi Johannsson, who is chairman of the Progressive Party, was one of the first people to vote when the polling station opened in the small Icelandic village of Fludir.

Voters defied rain and freezing winds to get to the polling stations which opened at 9:00 am (0900 GMT) in Reykjavik and one hour later in the countryside. The voting ends at 10:00 pm (2200 GMT).

"I'm optimistic. We have found for the last days that a lot of people are coming to us," Johannsson told AFP.

But three separate polls released on the eve of the vote and conducted by the University of Iceland, research company MMR and Gallup, indicated the incumbent conservative coalition government would probably be voted out.

"We're losing support (because of the) big anti-establishment (feeling)," Independence Party MP Birgir Armannsson said.

- Fight against corruption -

Final election results will be released shortly after polling stations close, but because no party is expected to win a majority, Iceland's fate will only be known after post-election coalition negotiations.

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The latest wave of a global movement against establishment politics could see the Pirate Party become the second largest group in the Icelandic parliament.

"I'm looking for some changes. The system... is not all bad," said Helgi Mar Gunnarsson, a 54-year-old designer, as she cast his vote, adding that decision-making should be more transparent.

The Pirates, who campaign for transparency and the fight

against corruption, could form the nation's second centre-left government since Iceland's independence from Denmark in 1944. The Social Democrats and Greens ruled in a coalition between 2009-2013.

The Pirate Party reached a pre-election agreement with three other leftist and centrist opposition parties, including the Left-Greens, the Social Democrats and the Bright Future Movement, to form a coalition government.

"We think that these parties can cooperate very well... I think it will be a very feasible governmental choice," Katrin Jakobsdottir, leader of the Left-Green movement told AFP.

- 'I want change' -

Iceland, a volcanic island with a population of 332,000, has returned to prosperity since its 2008 financial meltdown.

Gross domestic product (GDP) growth is expected to be above four percent this year thanks to tourism revenues and a recovering financial system.

Still, young people do not trust the nation's traditional political parties.

The crisis eight years ago saw Iceland's three biggest banks and its oversized financial sector collapse, while the country was forced to seek a bailout from the International Monetary Fund.

A string of bankers were jailed, the failed banks were temporarily nationalised and then sold, and foreign investors had to accept write-downs on their debt holdings.

Olafur Hardarson, professor of political science at the University of Iceland, attributed the Pirates' rise in popularity to voters' anger at the 2008 meltdown.

"They have managed to focus on the anti-politics and anti-establishment feelings of a lot of voters (who) have been frustrated in Iceland since the bank crash," Hardarson told AFP.

But several months ago, the Pirates had almost twice the support the latest polls have shown, according to Icelandic newspaper Morgundbladid.

The fall in popularity may have been caused by internal disputes within the party, the paper added.

"The Pirates are in fact a rather loose alliance of people who are mainly united in their opposition to traditional politics and the system," the newspaper said.