A spokesman for General John Allen says the top United States and NATO commander of the war in Afghanistan has returned to Kabul to resume his duties.
General Allen's return comes more than a week after the Pentagon announced it is investigating potentially inappropriate e-mails between ex-CIA Director David Petraeus and his biographer, Paula Broadwell.
Paul Broadwell owns a home with her husband and two children in Charlotte.
General Allen's spokesman said that the general returned to work on Wednesday.
Allen had been in Washington D.C. when news of his problematic e-mail correspondence with Tampa, 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.