Some of the victors in the Dec. 16 general election may face re-votes because a glut of candidates has raised the possibility that no one will attain the legal threshold of one-sixth of the ballots to officially win.

Although this rarely happens, the large number of parties in this year's contest has increased the chances of a re-vote happening in single-seat constituencies.

"It is theoretically possible that no candidate will earn one-sixth of the vote" if there are more than seven candidates running for a single-seat constituency, an official at the internal affairs ministry said.