Swedish voters narrowly re-elected the governing centre-right Alliance coalition, but stopped short of giving it another majority, while the far-right Sweden Democrats were voted into parliament for the first time.

Prime Minister Fredrik Reinfeldt's coalition government won 49.1 percent of the vote, while the left-wing opposition won 45.1 percent of the vote, with the Sweden Democrats garnered 4.6 percent, enough to enter parliament, exit polls by Swedish public television company SVT showed.

If the poll accurately reflects the final result, the Greens would be the third-largest party in parliament with 9 percent of support, up 3.8 percent, followed by the Liberal Party (7.2 percent), Centre Party (7.1 percent), both of whom lost support by less than a percentage point, and the Left Party at 6.1 percent. Support for the Christian Democrats also slipped to 5.7 percent.