Icelanders are preparing to vote in a national election, with the radical Pirate Party hoping to unseat the center-right government.

The Pirate Party, founded four years ago by an assortment of hackers, political activists and Internet freedom advocates, has made big gains among Icelanders fed up with established parties after years of financial crisis and scandal.

Polls suggest the Pirates are vying with the center-right Independence Party to become the biggest group in Iceland's parliament, the Althingi.

The election was called after then-Prime Minister Sigmundur David Gunnlaugsson resigned in April amid protests over his offshore holdings, revealed in the Panama Papers leak.

Polls open at 9 a.m. (0900GMT) Saturday, with about 245,000 Icelanders eligible to vote. Voting ends at 10 p.m. (2200GMT), with partial results due early Sunday.