Hillary Clinton's presidential campaign said on Saturday the former secretary of state will testify on Oct. 22 before a House committee investigating the 2012 Benghazi, Libya, attacks, but a spokesman for the panel said no date had been set.
Republican Representative Trey Gowdy, chairman of the Benghazi investigation committee, had sought to hear from Clinton on the attacks, in which four Americans were killed, and her use of a private email account while she was America's top diplomat.
A spokesman for Clinton, the front-runner in polls for the Democratic nomination in next year's presidential election, said she had accepted an offer from the committee to testify on Oct. 22.
Look back at the 2012 attack on the U.S. compound in Benghazi:
Clinton, congressional Benghazi panel at odds over appearance date
(FILES) This file photo taken on September 11, 2012 shows an armed man waving his rifle as buildings and cars are engulfed in flames after being set on fire inside the US consulate compound in Benghazi. A long-awaited inquiry into a deadly militant attack on the US mission in the Libyan city of Benghazi late on December 18, 2012 slammed State Department security arrangements there as 'grossly inadequate.' But the months-long probe also found there had been 'no immediate, specific' intelligence of a threat against the mission, which was overrun on September 11 by dozens of heavily armed militants who killed four Americans. AFP PHOTO / FILES (Photo credit should read STR/AFP/Getty Images)
A Libyan man walks in the rubble of the damaged U.S. consulate, after an attack that killed four Americans, including Ambassador Chris Stevens on the night of Tuesday, Sept. 11, 2012, in Benghazi, Libya, Thursday, Sept. 13, 2012. The American ambassador to Libya and three other Americans were killed when a mob of protesters and gunmen overwhelmed the U.S. Consulate in Benghazi, setting fire to it in outrage over a film that ridicules Islam's Prophet Muhammad. Ambassador Chris Stevens, 52, died as he and a group of embassy employees went to the consulate to try to evacuate staff as a crowd of hundreds attacked the consulate Tuesday evening, many of them firing machine-guns and rocket-propelled grenades. (AP photo/Mohammad Hannon)
Speaker of the House John Boehner, R-Ohio, listens as he and GOP leaders meet reporters following a Republican strategy meeting on Capitol Hill in Washington, Tuesday, April 29, 2014. Boehner said Rep. Michael Grimm, R-N.Y., did the right thing by stepping down from the the House Financial Services Committee after he was indicted Monday with evading taxes. Grimm told Speaker Boehner he should be removed from the panel but said he plans to return once his legal issues are resolved. (AP Photo)
WASHINGTON, DC - MAY 01: (L-R) U.S. Air Force Brig. Gen. Robert Lovell (Retired), former deputy director for the Intelligence and Knowledge Development Directorate (J-2) of U.S. Africa Command and former deputy commanding general of the Joint Task Force Odyssey Guard, Hoover Institution research fellow Kori Schake, Foundation for Defense of Democracies senior fellow Daveed Gartenstein-Ross, and Carnegie Endowment for International Peace Middle East Program senior associate Frederic Wehrey testify during a hearing before the House Oversight and Government Reform Committee May 1, 2014 on Capitol Hill in Washington, DC. The committee held a hearing on 'Benghazi, Instability, and a New Government: Successes and Failures of U.S. Intervention in Libya.' (Photo by Alex Wong/Getty Images)
WASHINGTON, DC - MAY 01: U.S. Air Force Brig. Gen. Robert Lovell (Retired), former deputy director for the Intelligence and Knowledge Development Directorate (J-2) of U.S. Africa Command and former deputy commanding general of the Joint Task Force Odyssey Guard, is sworn in during a hearing before the House Oversight and Government Reform Committee May 1, 2014 on Capitol Hill in Washington, DC. The committee held a hearing on 'Benghazi, Instability, and a New Government: Successes and Failures of U.S. Intervention in Libya.' (Photo by Alex Wong/Getty Images)
A vehicle sits smoldering in flames after being set on fire inside the US consulate compound in Benghazi late on September 11, 2012. An armed mob protesting over a film they said offended Islam, attacked the US consulate in Benghazi and set fire to the building, killing one American, witnesses and officials said. AFP PHOTO (Photo credit should read STR/AFP/GettyImages)
FOR USE AS DESIRED, YEAR END PHOTOS - FILE - Secretary of State Hillary Rodham testifies on Capitol Hill in Washington, Wednesday, Jan. 23, 2013, before the Senate Foreign Relations Committee hearing on the deadly September attack on the U.S. diplomatic mission in Benghazi, Libya, that killed Ambassador Chris Stevens and three other Americans. (AP Photo/Pablo Martinez Monsivais, File)
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"Earlier this week we were pleased for Secretary Clinton to receive an offer from Congressman Gowdy to appear before the committee in a public hearing in October, and yesterday accepted his invitation," campaign spokesman Nick Merrill said in an emailed statement. He said the date was Oct. 22.
A few hours after the Clinton campaign announced her planned appearance, Jamal Ware, spokesman for the Benghazi committee, said the date was not firm.
"Secretary Clinton's campaign may want to reach out to her lawyer, Mr. David Kendall, with whom the Committee has had ongoing conversations," Ware said in a statement. "As of last night, Mr. Kendall was still negotiating conditions for her appearance."
Ware said the conditions proposed by Kendall were that the date of her testimony not change once it was set and that questioning of Clinton stay within parameters set by the resolution that established the committee.
However, a Democratic spokesman for the Benghazi committee said Gowdy's staff had proposed dates in October and that Clinton's attorney had accepted Oct. 22.
Clinton was secretary of state at the time of the Sept. 11, 2012, attacks by Islamic militants on U.S. diplomatic facilities in Benghazi, which resulted in the deaths of Ambassador Chris Stevens and three other Americans.
Congressional Republicans have scrutinized Clinton's handling of the incident and criticized the lack of security at the U.S. compound.
Clinton has also been engulfed in a controversy over her use of a private email server instead of a government account while she was secretary of state.
At least four emails out of some 30,000 from that private account contained classified information, according to a government inspector's letter to Congress this week.
Watch for the latest on the Clinton email scandal:
(Writing by Bill Trott; Editing by Ros Russell and Eric Beech)