Wal-Mart has confirmed that Julie Roehm, senior vice president of marketing communications, and Sean Womack, vice president of communications architecture, have both left the company.

Roehm joined the company in February, having previously worked as director of marketing communications at auto manufacturer DaimlerChrysler, whileWomack was reportedly hired this spring and reported to Roehm.

Both departed the company on Monday.

A company spokesperson said: "We do plan to replace them but do not know the time frame. There is no additional information than that."