Centre-right missed out on a parliamentary majority by two seats – but rules out any deal with the far-right Sweden Democrats.

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Swedish Prime Minister Fredrik Reinfeldt's centre-right coalition missed out on a parliamentary majority by two seats in a weekend general election, a final tally of votes showed Thursday.

Reinfeldt's four-party Alliance gained one extra seat at the expense of the left-wing opposition after votes cast by Swedes living abroad were counted, giving it with 173, two short of a majority, election authorities said.

Reinfeldt, whose bloc took 49.28 percent of the vote, must now seek alliances with leftwing opposition parties to form a government.

The 45-year-old outgoing prime minister has already ruled out any deal with the far-right Sweden Democrats, which enter parliament for the first time with 20 seats.

The Social Democrats and their leftwing opposition coalition partners the Greens and the former communist Left Party took 43.6 percent and 156 seats, while the Sweden Democrats won 5.7 percent of the vote.

Turnout in Sunday's election was 84.63 percent.

Reinfeldt and other party leaders have kept a low profile since Monday, saying they would wait to discuss the future government make-up and possible new alliances until after the final results.

Discussions were expected to pick up Friday, but a new government is not expected to be announced until October 5 at the earliest.