Washington: Shortly after the U.S. diplomatic compound in Benghazi, Libya was attacked in September 2012, a phone call was made from the area to al Qaeda leader.
Whoever made the call was excited and repeated 'Mabruk, Mabruk!', which means 'congratulations' in Arabic.
According to CNN, two sources with high-level access to Western intelligence services said that the call was made to a senior figure in al Qaeda in the Islamic Maghreb, or AQIM.
There is no proof that the call was specifically about the attack, in which U.S. Ambassador Chris Stevens and three other Americans were killed, but the sources said that it is assumed it was linked to the attack.
One of the sources said that the phone call was discovered when a Western intelligence service trawled through intercepts of communications made in the wake of the attack.
The source added that the call was made specifically to Moktar Belmoktar, leader of an al Qaeda faction based in northern Mali.