WASHINGTON — U.S. Secretary of State Hillary Clinton sustained a concussion after becoming dehydrated and fainting, and will no longer testify Thursday before the House Foreign Affairs Committee on the deadly attack on the U.S. consulate in Benghazi, Libya.

Clinton had been suffering from a stomach virus at the time, according to a statement on Saturday from Philippe Reines, deputy assistant secretary of state.

She is being monitored by doctors and is recovering at home. She was never hospitalized, Reines said.

“At their recommendation, she will continue to work from home next week, staying in regular contact with Department and other officials. She is looking forward to being back in the office soon,” Reines said.

Secretary Clinton had been scheduled to testify on Capitol Hill Thursday about the deadly attack in Benghazi, Libya, in September that killed four Americans, including the U.S. ambassador.

Jodi Seth, spokeswoman for Sen. John Kerry, Senate Foreign Relations Committee chairman, said in a statement that Clinton would not testify before that committee Thursday.

“Secretary Clinton’s team contacted Senator Kerry this morning to inform them of the Secretary’s concussion. Senator Kerry was relieved to hear that the Secretary is on the mend, but he insisted that given her condition, she could not and should not appear on Thursday as previously planned, and that the nation’s best interests are served by the report and hearings proceeding as scheduled with senior officials appearing in her place,” Seth said.