A possible attempt to duplicate voter ballots at a Denver adult day care center is under investigation by six Front Range Colorado counties.

The alleged fraud was caught by Denver Clerk & Recorder election staff who were manually reviewing individual ballots and noticed voter signatures did not match up.

The incident involved 60 voters and their ballots in the six counties, according to the Colorado County Clerk’s Association.

Two of those ballots belonged to voters in Boulder County, Mircalla Wozniak with the Boulder County Clerk and Recorder’s office confirmed, and at least one came from Jefferson County, Clerk and Recorder spokesperson Sarah McAfee said.

The potentially phony votes were not counted. 

The other counties besides Boulder included Adams, Denver, Douglas, Jefferson and Arapahoe. The Denver Gazette confirmed that the Denver, Arapahoe and Adams County District Attorney offices are investigating the possible election fraud incident, which centers around one Denver adult day care center.

Adams County Clerk and Recorder Josh Zygielbaum confirmed an investigation is underway.

“I can tell you that our systems work and, once again, Clerk’s offices have protected the sanctity of the election,” he said.

It’s not clear why or how this happened,  or exactly when Denver election workers caught the mismatched signatures.

This latest incident comes two weeks after at least a dozen election ballots were stolen, filled out, and mailed to the Mesa County Clerk and Recorder for counting. Nine of the 12 were caught in the signature verification process, but three were counted and could not be reversed, although the voters were given another ballot.

In a statement, Denver Clerk Paul Lopez said: “Our office discovered ballot irregularities tied to an adult day care operating in Denver and referred them to law enforcement. The irregularities were discovered when several voter signatures had discrepancies, and all were associated with a single address.”

Lopez added that the incident is a good example of how “Colorado’s multi-layered ballot processing systems have been proven effective in identifying irregularities in voted ballots, assuring voters Colorado elections are safe and accurate.”

A spokesperson for the 18th Judicial District, which includes Arapahoe and Douglas counties, confirmed that a criminal investigator is looking into “irregularities” — but that no arrests have been made.

Election fraud involving voter impersonation is punishable by a fine of up to $5,000, or jail time of up to 18 months, or both.