MADISON - State election officials have ordered a recount in a south-central Wisconsin Assembly race.

Republican Keith Ripp of Lodi defeated Democrat Trish O'Neil of Columbus by 28 votes for an open seat in the 47th Assembly District on election night.

O'Neil filed a petition with the Government Accountability Board on Thursday asking for a recount. The petition alleges vote-counting mistakes were made in every ward.

Mistakes were made in counting absentee ballots and in requirements for absentee ballots, the petition said. Also, machines didn't properly count ballots, and the election was marked by other "irregularities," it said.

Ripp declined comment. O'Neil referred questions to her attorney, Randy Nash. He didn't immediately return a message Thursday morning.

The recount will get under way Monday in Columbia, Dane and Sauk counties. Dane County Clerk Robert Ohlsen and Sauk County Clerk Beverly J. Mielke said they weren't aware of problems in their counties and the petition language was standard for a recount request.

Columbia County Clerk Susan Moll didn't immediately return a message for comment.