The House intelligence committee has cleared the Central Intelligence Agency (CIA) of wrongdoing in the 2012 Benghazi attack in Libya.
However a new declassified report said that CIA's controversial talking points written later were "flawed".
The bipartisan report said that the CIA's initial talking points saying that the attack was provoked by a video were gradually proved to be incorrect. They were based on the intelligence the agency had at the time.
According to the Washington Times, investigators also said that the CIA was slow to respond to some inquiries.
Investigators said the CIA had received 21 reports that the attack involved a protest and it wasn't until a few days after the attack that the first CIA analysis began to challenge that version.
Investigators said that the assessments are still continuing into the motives of the individual attackers.