A group on Tuesday filed an emergency petition with the Wisconsin Supreme Court, challenging the state’s unofficial election results.

The Thomas More Society’s Amistad Project said it found tens of thousands of ballots that may be fraudulent.

“We have identified over 150,000 potentially fraudulent ballots in Wisconsin, more than enough to call into question the validity of the state’s reported election results,” said Phill Kline, director of the project, in a statement.

“Moreover, these discrepancies were a direct result of Wisconsin election officials’ willful violation of state law,” he added.

According to unofficial results in the state, Democratic presidential nominee Joe Biden beat President Donald Trump by about 20,000 votes.

The group said it found that more than 10,000 Republican ballots weren’t counted; more than 10,000 GOP voters who had their ballots requested and filled in by another person; and around 100,000 illegal ballots that were counted anyway.

The 45-page filing asks the Wisconsin Supreme Court to block the certification of election results because of the alleged irregularities.

The Wisconsin Elections Commission didn’t respond to a request for comment.

The lawsuit details a series of alleged illegal actions taken by Wisconsin officials that led to significant numbers of improper votes being counted. One example is not enforcing state laws that require voters to present photo identification when requesting an absentee, or mail-in, ballot. The only exceptions are for voters who are hospitalized or “indefinitely confined because of age, physical illness, or infirmity.”

The indefinite confinement exception was interpreted to apply to people with COVID-19. Statistical analysis shows nearly 100,000 exploited the exception, the project said.

The possibly fraudulent ballots were identified in a data analysis performed by statistician Matthew Braynard and mathematician Steven Miller.

The project announced last week it would be filing federal and state lawsuits challenging the presidential election results in Wisconsin, Pennsylvania, Michigan, Nevada, Georgia, and Arizona.

Two Wisconsin counties are currently engaged in a recount initiated at the request of the Trump campaign.

The deadline for the partial recount is Dec. 1.

The Thomas More Society, based in Chicago, describes itself as a national public interest law firm dedicated to providing free legal services for clients all over the United States in defense of life, family, and religious liberty.