Yemen's al Qaeda leader vows to attack America in new video

Dubai - The leader of al Qaeda's wing in Yemen has vowed to attack the United States, in a video apparently showing a gathering of the group celebrating a mass jailbreak of fighters.

In February, attackers mounted a bomb, grenade and gun assault on the main prison in Sanaa in which 29 inmates, including 19 jailed for terrorism-related crimes, escaped.

The 15-minute video, dated March 2014 and posted on a website used by Islamists, shows masked men waving al Qaeda's black flag and celebrating the arrival of the freed prisoners. (Reuters)