Updated

Two U.S. officials say just a handful of the emails between the top U.S. commander in Afghanistan and a Florida woman are potentially problematic, but the vast majority of the 20,000-plus pages of documents reviewed by investigators were routine.

The disclosure puts a clearer perspective on the breadth of questionable communications between Gen. John Allen and Tampa socialite Jill Kelley. Officials have described some emails as inappropriate and "suggestive." Allen has said he's done nothing wrong.

One of the officials put the number at five. The officials were not authorized to publicly discuss the investigation and spoke on condition of anonymity.

Kelley is a key player in the scandal that uncovered ex-CIA Director David Petraeus' affair with his biographer and led him to resign.

Allen's nomination to lead the U.S. European Command is on hold while the investigation continues. He continues in his job as commander of the Afghanistan war.