Late last year, Sprint announced it was being acquired by Japan’s Softbank. Now, Brendan Sasso of The Hill reports, the Justice Department has asked the FCC to hit pause on approving the deal:

In letter to the FCC released on Tuesday, an attorney for the Justice Department’s National Security Division said DOJ, the Department of Homeland Security and the FBI need more time to investigate the deal for any “national security, law enforcement, and public safety issues.”

John Taylor, a Sprint spokesman, said the request is routine for deals involving a foreign company and that Sprint still expects the deal to close by the middle of this year.