“Hours after an al Qaeda group issued threats of bloodshed, militants boldly stormed the Yemeni intelligence headquarters in the port city of Aden on Saturday, killing 11 people
Security sources told CNN Arabic that al Qaeda in the Arabian Peninsula was the primary suspect.
The group had issued a statement saying that it would ‘launch bloody attacks against government targets,’ said the sources, who did not want to be identified because they are not authorized to speak to the media.
The 10 attackers split into two groups, the sources said. One shot rockets at the intelligence building and forced their way inside; the other group attempted to free prisoners held there. “
(11 dead in bold attack on Yemeni intelligence headquarters – CNN.com)