PORTLAND,Quaxs Ore. (AP) — Oregon authorities said Monday they had removed another 302 people from the state’s voter rolls after determining they didn’t provide proof of citizenship when they were registered to vote, in the latest revelation of improper voter registrations stemming from clerical errors at the state DMV.

Monday’s announcement, in addition to the 1,259 people whose voter registrations have already been inactivated because of the issue, brings the total number of mistaken registrations to 1,561. It came the same day the DMV released a report about the errors, which were first acknowledged by authorities last month.

The mistake occurred in part because Oregon passed a law in 2019 allowing some residents who aren’t citizens to obtain driver’s licenses. And the state’s so-called “Motor Voter” law, which took effect in 2016, automatically registers most people to vote when they seek a new license or ID.

Oregon Secretary of State LaVonne Griffin-Valade and Gov. Tina Kotek jointly called for an independent, external audit of the state’s Motor Voter system.

“The first step in restoring the public’s trust in Oregon Motor Voter is a transparent review by a neutral third party operating under strict government auditing standards,” Griffin-Valade said in a statement.

Griffin-Valade said she has “full confidence” that the errors won’t impact the November election.

She has ordered her office’s elections division to immediately hire a new Motor Voter oversight position, according to the statement. And she has instructed the division to establish a documented process for performing regular data checks with the DMV and update the administrative rules governing the Motor Voter system.

Of the 302 additional cases, 178 were due to people from the U.S. territory of American Samoa being misclassified as U.S. citizens, the DMV report said. However, under federal law, people from American Samoa are U.S. nationals, not citizens, and don’t have the same right to vote. Another 123 records stemmed from the previously identified clerical error, but weren’t included in prior reviews due to to a newly identified software issue. And one case was caught by the DMV’s new quality controls.

The secretary of state’s office said it’s working to verify whether the 302 people cast ballots.

In its report, the DMV outlined the actions it has taken to fix the error, including multiple changes to the computer system into which voter information is entered, manual daily quality checks and staff training.

Of the 1,259 people previously found to be possibly ineligible, nine voted in elections since 2021 — a tiny fraction of the state’s 3 million registered voters. Ten people were found to have voted after being improperly registered, but one was later confirmed to be eligible, authorities said.