WASHINGTON (AP) — A spokesman for Gen. John Allen says the top U.S. and NATO commander of the war in Afghanistan has returned to Kabul to resume his duties, more than a week after the Pentagon announced it is investigating potentially "inappropriate" correspondence between the four-star general and a woman linked to the David Petraeus sex scandal.

The spokesman said Allen returned to work Wednesday.

Allen had been in Washington when news of his problematic email correspondence with Florida socialite Jill Kelley surfaced last Monday. He was expected to testify before a Senate committee last Thursday on his nomination to become the commander of U.S. European Command and the top NATO general. Defense Secretary Leon Panetta has put that nomination on hold.

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