Clinton's emails were addressed to Diane Reynolds, an alias that Chelsea Clinton used

The emails also revealed Chelsea's response to her mother's message

But the Obama Administration later described it as a spontaneous protest

Hillary Clinton told her daughter that that two officers had been killed, and attributed the attack to an Al-Qaeda group

Hillary Clinton sent an email to her daughter Chelsea the night of the Benghazi attacks in which she claimed an 'Al-Qaeda-like group' carried out the assault, it has been revealed.

In the emails, she told Chelsea, under the alias Diane Reynolds, that two officers had been killed, and attributed the attack to an Al-Qaeda group rather than a spontaneous protest at the Obama Administration later described it.

'Two of our officers were killed in Benghazi by an Al Qaeda-like group: The Ambassador, whom I handpicked and a young communications officer on temporary duty w a wife and two young children. Very hard day and I fear more of the same tomorrow,' she wrote in the email.

Emails from the night of the Benghazi attacks were addressed to Diane Reynolds, an alias that Chelsea Clinton used

Clinton told her daughter that that two officers had been killed, and attributed the attack to an Al-Qaeda group, rather than a spontaneous protest at the Obama Administration later described it.

The emails also revealed Chelsea's response to her mother's message, according to NBC News.

'I am so sorry about the State Department officer killed in Libya and the ongoing precariousness in Egypt and Libya,' Chelsea wrote to her mother.

She added: 'Such anathema to us as Americans - and a painful reminder or how long it took modernism to take root in the US, after the Enlightenment, the 14th, 15th, 16th 19th amendments, removal of censorship norms and laws, etc.

'Heading to bed to read. A strange day here. Another bright blue beautiful chilly September 11th.'

On Sunday, Hillary Clinton said that the FBI has not contacted her regarding its probe of whether she held classified information on her private email server.

Asked on CNN's State of the Union whether she had been interviewed by the FBI yet, the former secretary of state replied, 'No', and did not elaborate.

The September 11, 2014, email from Cinton to her daughter was mentioned by Rep Jim Jordan during her Benghazi hearing

Federal investigators are looking into the security of Clinton's email setup amid concerns from the intelligence community's inspector general that classified information may have passed through the system. Clinton provided the server to the FBI in August.

Clinton has said she didn't send or receive information that was classified at the time via her personal email account.

Last week, Bill Clinton brought up his wife's 11-hour Benghazi hearing for the first time, using the testimony as an example of how well she can keep her 'cool.'

'I doubt that there is another figure in American public life who could have stood there for 11 hours, answered every question, never lost her cool and kept on going,' he said.

An ironic admission