Emails were sent to the Government two hours after attack started claiming a militia group was to blame.
According to e-mails obtained by CNN, the White House, State Department and the FBI were informed a militant Islamist group had claimed credit -- two hours after the attack began.
U-S diplomats were informing officials in Washington about the unfolding assault - while it was happening.
The e-mails raise further questions about the seeming confusion on the part of the Obama administration to determine the nature of the September attack and those who planned it.
The attack left U-S Ambassador Christopher Stevens and three other Americans dead.