(Fox News) UPDATE: 

Former CIA Director David Petraeus testified in a closed-door hearing Friday morning that his agency determined immediately after the Sept. 11 Libya attack that "Al Qaeda involvement" was suspected -- but the line was taken out in the final version circulated to administration officials, according to a top lawmaker who was briefed. 

Rep. Peter King, R-N.Y., who spoke to reporters after Petraeus testified before the House Intelligence Committee, indicated he and other lawmakers still have plenty of questions about the aftermath of the attack. 

Read more at Fox News.

WASHINGTON, Nov. 16 (UPI) -- U.S. lawmakers said they saw a video of the attack on the U.S. Consulate in Libya as ex-CIA Director David Petraeus prepared to testify Friday on Capitol Hill.

"A lot of light was shone on this situation," Senate Intelligence Committee Chairwoman Dianne Feinstein, D-Calif., told reporters after the 4-hour closed-door hearing. "But we don't have all the facts yet."

Feinstein said she expected to ask Petraeus about his visit to the CIA's station in Tripoli, Libya's capital, two weeks ago to investigate the Sept. 11 attack in Benghazi that killed Ambassador Christopher Stevens and three other Americans, including two CIA contractors.

"He interviewed many of the people, as I understand it, that were involved," Feinstein said. "So the opportunity to get his views, I think, is very important."

She added her committee would hold at least three additional hearings on the matter after Petraeus offers his account of the attack.

Feinstein said Wednesday Friday's closed-door hearing would not address Petraeus' extramarital affair with his biographer, Paula Broadwell.

The video shown Thursday included footage from surveillance cameras and an unmanned Predator drone, Feinstein said.

"The film is a composite from a number of sources," she said. "It is real time. It does begin from ... before the incident started, and it goes through the incident and the exodus."

A source familiar with the closed-door House Intelligence Committee hearing, which was also shown the video, told CNN the video included shots of Stevens being dragged out of the building.

Feinstein and Committee Vice Chairman Saxby Chambliss, R-Ga., declined to say what questions they asked acting CIA Director Michael Morell, National Intelligence Director James Clapper and Deputy FBI Director Sean Joyce Thursday.

Chambliss and other committee members said before the hearing they intended to look into possible intelligence flaws, security lapses and the Obama administration's handling of the issue.

"We know mistakes were made, and we've got to learn from that," Chambliss told reporters. "Our membership asked some very hard and very tough questions ... and we're going to continue to do that in our subsequent hearings."

The same administration officials faced questions from House Intelligence Committee members earlier in the day.

The House Foreign Affairs Committee said Thursday Secretary of State Hillary Clinton would testify before lawmakers about an official investigation into the attack.

Clinton "has committed to testifying before our committee and the Senate Foreign Relations Committee" on a report by the Accountability Review Board, a five-member panel formed to investigate the Benghazi attack and make recommendations, said committee Chairwoman Ileana Ros-Lehtinen, R-Fla.

Ros-Lehtinen did not say when Clinton would testify but said the review board was expected to finish its report by "early to mid-December."

Clinton announced the creation of the board Sept. 20. It is led by veteran diplomat and former Undersecretary of State Thomas R. Pickering.