Adm. Mike Mullen, retired (file photo)
WASHINGTON (AP) -- The State Department says it has accepted the resignations of four people, in the aftermath of a report that blamed management failures for a lack of security at the U.S. diplomatic mission in Benghazi, Libya, in September.
An attack on the consulate by militants killed the U.S. ambassador and three other Americans.
Obama administration officials say those who have stepped down include Eric Boswell, the assistant secretary of state for diplomatic security, and Charlene Lamb, the deputy assistant secretary responsible for embassy security.
Officials say some of those who resigned may have the option of being reassigned to other duties.
The head of the high-level panel that produced the report on the Benghazi attack, retired Adm. Mike Mullen, says there was no finding of any "willful misconduct," or that anyone "knowingly ignored his or her responsibilities."
But he says some senior State Department officials showed a "lack of leadership and management ability."
He and retired ambassador Thomas Pickering, the co-chairman, briefed members of Congress today. Afterward, lawmakers from both parties had harsh words for the State Department.
Public hearings on the Benghazi attack are scheduled for tomorrow.