Finland's parliamentary election results show the Social Democratic Party (SDP) winning with 17.7 percent of the votes, according to CNN's local affiliate Italehti.

The tight race saw the anti-immigration right-wing Finns Party come in second place with 17.5 percent, while their coalition partners the National Coalition Party, and the Center Party scored 17 percent and 13.8 percent respectively, Italehti reported.

According to Reuters, this is the first time in a century that no party has won more than 20 percent in an election, and coalition talks are likely to be protracted.

All centre-left and left-wing parties saw an increase in their vote, with the Green League coming in fifth with 11.5 percent of the vote, followed by the Left Alliance at 8.2 percent.

Between them, the three left-leaning parties should return 76 lawmakers, according to Italehti’s estimates, short of a majority in Finland’s 200-seat parliament, meaning a governing coalition will likely have to include one of the main centrist parties.

SDP Chairman Antti Rinne, as leader of the largest party, will have first shot at forming a government, and at becoming the first left-wing prime minister in Finland since 2003.

In a speech on Sunday, former union boss Rinne thanked party members for their hard campaign work.

“For the first time since 1999 we are the largest party in Finland … SDP is the prime minister’s party,” he told supporters in central Helsinki, Reuters reported.

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