Hillary Rodham Clinton's lawyer said she will agree to appear once before a U.S. House committee investigating the 2012 attack in Benghazi, Libya, instead of twice as the panel has requested.

Clinton, the former secretary of state at the time of the attack and now a 2016 Democratic presidential candidate, "remains ready and willing to testify in public" before the Benghazi committee, her lawyer, David Kendall, said in a letter to the panel's chairman dated Monday.

The House Select Committee on Benghazi is investigating the Sept. 11, 2012, terrorist attacks in Libya. Ambassador Christopher Stevens and three other Americans were killed in the attacks on the U.S. diplomatic compound in Benghazi and a nearby CIA outpost.