The Justice Department asked the Federal Communications Commission to defer SoftBank’s pending plans to acquire 70 percent of Sprint for $20 billion, Bloomberg reported. It’s unclear what the motive currently is, although we’re sure we’ll hear more information shortly.

AT&T already expressed concerns that SoftBank will be in control of too much U.S. wireless spectrum should the deal go through, so we’re wondering if that carrier’s statements have any role in the current issue.

Sprint said the review is typical, however. “This is a routine request when working with the agencies regarding national security,” Sprint told AllThingsD.