A Republican congressman says former Secretary of State Hillary Clinton lied when she told members of Congress last year that the deadly attacks on a U.S. diplomatic post in Benghazi, Libya, weren’t terrorist-related.

Rep. Adam Kinzinger, R-Ill., who attended the closed-door meeting two days after the Sept. 11, 2012, attack, said Clinton deliberately deceived lawmakers when she insisted the attacks were a spontaneous response to a YouTube video.

“Yeah, absolutely” she lied, Kinzinger told Fox News’ “Fox and Friends” program on Friday. “If you even look at the emails that were exchanged during this, they called it basically a terrorist attack. They knew what was going on.”

The lawmaker said Clinton, who was secretary of state at the time, “yelled” at another lawmaker who suggested that terrorists planned well in advance the attacks, which killed U.S. Ambassador J. Christopher Stevens and three other Americans.

“In a very loud, angry voice [she] says it’s irresponsible to even suggest this is a terror attack — this is a YouTube video,” he said.

“I actually sat there in that meeting and believed, well, the secretary actually believes this is a YouTube video because of how passionately she’s arguing it. … But we find out that they knew it the whole time that this was a terror attack, including when it was happening.”

Kinzinger declined to say who Clinton shouted at, saying it’s up to him or her to come forward.

In the days following the attacks, former U.N. ambassador Susan Rice said intelligence showed they were a spontaneous reaction to an anti-Islam video circulating on the Internet. The administration later clarified her statements, saying that — after reviewing more intelligence reports — the event was terrorism.