Election workers contacted the district attorney’s office after noticing several suspicious applications

Officials in Lancaster county, Pennsylvania, are investigating about 2,500 voter registrations after election workers discovered signs that they may be fraudulent.

The registrations under investigation were dropped off in two batches just before Pennsylvania’s voter-registration deadline on Monday. Election workers contacted the district attorney’s office after they noticed several suspicious applications that contained the same handwriting, signatures for voters that didn’t match what was on file, and inaccurate personal identifier information, including names, addresses, social security and driver’s license numbers, said Heather Adams, the district attorney, during a press conference on Friday.