Several rockets slammed a number of areas in the southern part of Syria\'s central city of Homs Thursday afternoon, causing a huge explosion in one of the arms depots of the Syrian army, the pro-government Sham FM radio reported. The report stopped short of giving the death toll of the attack believed to have been carried out by rebel groups. But is said material losses were caused. Meanwhile, an activists\' network said the blast occurred at one of the Syrian troops\' arms depots in the Wadi al-Dahab district in Homs city. Moreover, other activists\' websites posted video footage on the internet that shows a huge fireball spiraling into the sky with heavy black smoke surrounding it. The attack comes as the Syrian administration is celebrating the army\'s 68th anniversary. Syrian President Bashar al-Assad on Thursday stressed his confidence in winning the conflict with the rebels that has engulfed Syria for over 28 months.