Secretary of State Hillary Clinton will testify about the Sept. 11 attack in Benghazi, Libya, House Foreign Affairs Committee Chairwoman Ileana Ros-Lehtinen (R-Fla.) announced Thursday.

“I have spoken to Secretary Clinton’s counselor and chief of staff, Cheryl Mills, and the secretary has committed to testifying before our Committee and the Senate Foreign Relations on the Accountability Review Board’s report, which is expected to be concluded by early to mid-December,” Ros-Lehtinen said in her prepared opening remarks.

The announcement that Clinton would publicly testify for the first time came during the Foreign Affairs panel’s first public hearing on the issue. An earlier hearing scheduled shortly after the Sept. 11 attack that killed the U.S. ambassador and three other Americans was canceled after Clinton opted instead to appear at closed briefings with intelligence and defense officials.