Officials in several Pennsylvania counties continue to investigate potentially fraudulent voter registration applications as Trump has pushed some misleading or false claims about the incident.

Authorities in Lancaster, Berks, Monroe and York counties are investigating thousands of voter registration applications that they say are potentially fraudulent, according to several officials across the state. Amid ongoing investigations, some of the applications have been confirmed to be fraudulent, while others have been determined to be legitimate, according to updates.

Still, as recently as last week, Trump said Lancaster County was “stuck…with 2,600 votes.”

“They found, as I understand it, I mean, I don’t know what happened over the last day, but in Lancaster they found 2,600 ballots, all written by the same hand,” Trump said Sunday in Pennsylvania. .

But according to Pennsylvania’s attorney general, Trump’s characterization is false. In a statement last week, the state’s top prosecutor, Michelle Henry, said “the investigations concern voter registration forms, not ballots.”

On Monday, Lancaster County officials also updated that of the approximately 2,500 applications under investigation, more than half were confirmed to be valid. According to Lancaster County Commissioner Ray D’Agostino, 57% of applications were verified, 17% were determined to be fraudulent and 26% are still under investigation and are incomplete or unverified.

D’Agostino stressed that the investigation with the Prosecutor’s Office still continues. “We take this very seriously,” he said.

In York County, officials said last week that their investigation into a batch of 3,087 applications led to 47% being “verified as legitimate” and approved, 29% incomplete and pending, and 24% They were rejected and are being investigated by the DA.

Election officials have emphasized that this alleged fraud was contained and stopped, and say the case highlights the effectiveness of the system. Henry said the fraud attempts “have been defeated.”

“These attempts have been thwarted by the safeguards in place in Pennsylvania,” Henry said in his statement last week.

-ABC News’ Olivia Rubin