WASHINGTON -- Wisconsin's voter identification law reportedly caused some confusion at a polling place Tuesday, when workers asked voters to show identification even though the requirement is suspended.

Wisconsin Gov. Scott Walker (R) signed the voter ID bill into law last year, calling it a "common sense reform." While the law was in effect for February's election, two judges have since suspended the law, saying it is unconstitutional.

Reid Magney, spokesman for Wisconsin's Government Accountability Board, told the Wisconsin Radio Network that poll workers had been trained about the law but told not to enforce it. "It may be advisable if you have an ID to bring it with you, however, you are not required to show it in order to get a ballot or to vote,” Magney said.

That advice proved wise for voters in Fitchburg, Wis. According to a report to GAB, which oversees state elections, some voters were erroneously asked to show photo ID in Tuesday's primary.

Magney told The Huffington Post that the incident happened early Tuesday morning. He did not have details about how many voters were affected, or whether anyone was turned away from voting.

"When we hear about a problem like that we contact the clerk and have them instruct the poll workers not to request ID," he said, adding that it was the only problem they had heard about with photo ID in Tuesday's elections.

The Wisconsin Supreme Court is still considering whether to take up the case.