WASHINGTON - CIA Director Leon Panetta has testified that the spying agency frequently has misled Congress since 2001, a letter from seven US House Democrats to Panetta said. In addition, the chairman of the House intelligence committee accused the CIA of lying to the panel in a classified matter, The Washington Post reported Thursday. Congressman Silvestre Reyes, a Democrat, in a letter to House leadership, said CIA officials affirmatively lied to the committee when notifying it about a classified matter. In his letter Tuesday, Reyes wrote it was one of several recent instances in which the CIA did not fully inform the committee. The letter to Panetta, dated June 26, was published on the Web site of Congressman Anna Eshoo, a Democrat. Recently you testified that you have determined that top CIA officials have concealed significant actions from all members of Congress, and misled members for a number of years from 2001 to this week, the members said, while not detailing what information CIA officials allegedly concealed or how they mislead members of Congress. CIA spokesman George Little said Panetta stands by his May 15 statement, CNN said. Panetta testified to the House Permanent Select Committee on intelligence during a classified hearing June 24, a knowledgeable source told CNN. In May, House Speaker Nancy Pelosi of California accused the CIA of misleading Congress in a classified briefing she received in 2002 by failing to inform her and others at the briefing about harsh interrogation techniques being used on terrorism suspects. The CIA said Pelosi was told about the harsh techniques, including waterboarding, at the briefing.