PHOENIX - Maricopa County Recorder Helen Purcell said Tuesday that several voters who told the Arizona Democratic Party they were incorrectly identified at the polls as independents are in fact registered as independent voters.

The party had said earlier in the day it was investigating why the voters, who said they were registered Democrats, were misidentified.

Registered independents weren't eligible to vote in Arizona's closed primary.

A party spokesman said more than 20 voters had called about the error with their registration.

Poll workers are offering those voters provisional ballots, according to the party and some voters who've contacted 12 News.

A Democratic Party attorney sent the names of seven of the voters to Maricopa County Elections Director Karen Osborne for a check of their party registration, according to a party spokeswoman.

Purcell told 12 News later in the day that the spot check showed the voters were registered as independents.

PHOTOS: Voters hit the polls, March 22, 2016