An explosion rocked on Wednesday night the defected army headquarters in the Yemeni capital of Sana'a.
A huge explosion was heard in the First Armored Division headquarters located nearby Sana'a Change Square, the focal point of protests against the 33-year long rule of Ali Abdullah Saleh where thousands have been camping since February last year, according to the residents of the neighborhood.
Unknown attackers targeted the defected brigade with a huge mortar shell, the residents said.
Unidentified security official said that the mortar shell fell in a faraway place, and that it did not cause any causalities.
So far, there is not any information as to who is responsible for the attack on the military post.
Ali Mohsen al-Ahmar, the commander of the First Armored Division and northwestern military region, defected against his cousin the former President Ali Abdullah Saleh and pledged support for the revolution after more than 50 protesters was gunned down by Saleh's loyal forces.
His supportive position to the revolution marked a turning point in the Yemeni revolution as his loyal forces protected the protesters from what was dubbed into thugs, who were ascending roof tops and gun down peaceful protesters in a bid to quell protests.
He was reportedly subjected to many assassination attempts in the last couple of years as his relationship with Saleh has sharply deteriorated due to his alleged opposition to bequeathing rule to Saleh's eldest son, Ahmed.