Some confusion in North Carolina regarding party ballots

The Raleigh News and Observer is reporting that in Wake County, North Carolina, there was some confusion among registered Republican voters about whether they could vote the Democratic party ballot:

Elections officials in Wake were dealing with confusion on the part of some Republican voters who asked for Democratic ballots, county Elections Director Cherie Poucher said.

Under state law, only unaffiliated voters may choose between the Democratic and Republican ballot on primary day; others must vote in the primary of the party with which they were registered as of April 11, Poucher said.

Republicans who insisted on Democratic ballots were being allowed to vote provisionally, though by law only their votes in nonpartisan races can count.