Cash registers at Cub grocery stores experienced technical issues Wednesday afternoon requiring cashiers to manually enter item codes instead of scanning items during checkout.

The problems impacted all Cub stores, but a spokesman for parent company United Natural Foods Inc. (UNFI) said "the vast majority" of Cubs registers were back in working order as of Thursday morning.

"The staffed registers at Cub continue to require manual UPC entry, but the majority of the [self]-checkouts are continuing to function normally," according to a Wednesday statement from UNFI. "CUB's store technology team is deploying a fix to the staffed registers now. We expect these to be back in service by the end of [Wednesday]."

Some Minnesotans posting on social media Wednesday reported delays as they were trying to check out. Twin Cities journalist Dymanh Chhoun posted from what appears to be a Cub in Bloomington on X, formerly Twitter, "price scanner is not working right now, so the cashier has to input the numbers of the products manually, one by one."

UNFI did not provide additional details about what could have caused the register issues.