HARRISBURG, Pa. (AP) — Investigations into potential fraud in voter registration applications in three Pennsylvania counties have become fodder for online misinformation, including from Republican presidential nominee Donald Trump. Authorities in Lancaster, Monroe and York counties have released limited details, and local prosecutors are looking into whether any crimes might have occurred.

Lancaster County District Attorney Heather Adams, an elected Republican, said election workers raised concerns about two sets of voter registration applications because of what she described as numerous similarities. They're examining a total of about 2,500 forms. Lancaster officials said they alerted two other counties to check similar registration applications.

In Monroe County, the Board of Elections staff identified about 30 irregular forms and referred them to the district attorney’s office. York County Chief Clerk Greg Monskie confirmed this week that his county was reviewing suspect forms. County Commissioner Julie Wheeler issued a statement saying voter registration forms and mail-in ballot applications were among a “large delivery containing thousands of election-related materials” that the county elections office received from a third-party organization.

She said that if a review comes across suspected fraud, the district attorney will investigate. The York district attorney's office said it was in contact with the board of commissioners and elections office, but did not i.