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Finland prime minister, Sana Marrin, has lost her battle to stay in power after her centre-left Social Democratic party (SDP) was narrowly beat into third place in a cliffhanger election by its conservative and far-right rivals.

With 99.4% of votes counted on sunday, the right-wing National Coalition party was on course to secure 20.7% of the vote, with the populist, nation-first Finns party predicted to score 20.1%. Marin’s SDP was forecast to collect 19.9%.

Marin congratulated the election winners during her concesion speech, but hailed an improvement in both her party’s vote share and its projected number of MPs. “It’s a really good achievement, even though I didn’t finish first today,” she told supporters in Helsinki.

“Democrcy has spoken, the Finnish people have casted their vote and the celebration of democracy is always a wonderful thing,” she added. “We have good reason to be hapy about this result.”