Wal-Mart Stores will be giving hundreds of additional workers pink slips as the discount retailer prepares a fresh round of job cuts, sources familiar with the matter told CNBC.

The layoffs were first reported by the Wall Street Journal. The cuts would affect both regional workers and employees at the company's headquarters, sources told the Journal. They added that many of the layoffs will impact its human resources department.

In a statement to CNBC, Wal-Mart said, "As we've previously shared, we are always looking for ways to operate more efficiently and effectively. While we continually look at our corporate structure, we have not made any announcements."

The move marks the latest in a series of cuts as the retailer pares some expenses. In September, it said it would slash 7,000 back-office jobs while it said in October 2015 that it was cutting hundreds of positions at headquarters.

—CNBC's Courtney Reagan contributed to this report.

