US Intelligence warned embassy of threat 48 hrs in advance of attack.

By Suzanne Kelly CNN

Concerned about the reaction to an anti-Muslim film that was gaining attention online, the U.S. intelligence community sent a cable to the embassy in Egypt warning of the concern, a U.S. official told CNN. It was sent 48 hours before the protests in Cairo and Benghazi in Libya, the official said.

The cable did not discuss any specific threat, the official said. It warned instead about the existence of the movie being posted on the internet and the fact that it was gaining attention. A seven minute portion of the movie aired on an Egyptian TV talk show the weekend before the protests started, according to a Department of Homeland Security/Federal Bureau of Intelligence memo obtained by CNN on Thursday.

The cable was not sent to the embassy in Tripoli, Libya or the consulate in Benghazi. US officials have said there was no intelligence ahead of the attack in Benghazi, which intelligence officials still believe was not planned. The White House spokesman Jay Carney said Friday there was no "actionable intelligence" indicating an attack was being planned.

There are hundreds if not thousands of cables sent each day, the official said, and there was no specific threat attached to this one, because a specific threat was not known.