Macy’s announced Monday that a single employee was responsible for so many accounting irregularities that the company was forced to delay its quarterly earnings report, which the retailer had planned to release Tuesday.

Macy’s says it’s delaying the release of its fiscal third-quarter earnings results after it discovered an up to $154 million accounting-related issue

The employee "intentionally made erroneous accounting accrual entries" to hide millions of dollars, Macy's said. The error forced the company to delay reporting its third quarter results.