Suicide bombers attack a supply base outside kabul Tuesday, killing at least six people and blowing out a section of the compound's wall.<br/> <br />Foreign companies use the base to supply NATO forces.<br/> <br />Officials say one of the bombers drove into the center's vehicle bay before detonating the explosives.<br/> <br />The Taliban is claiming responsibility for the attack which killed four Nepalese guards and two truck drivers.<br/> <br />As many as five other drivers who were sleeping in their trucks were wounded in the attack.<br/> <br />(SOUNDBITE) (Dari) WOUNDED TRUCK DRIVER, MOHAMMAD ESSAQ SAYING:<br/> <br />"I was asleep, then suddenly an explosion happened, when I woke up I found myself injured."<br/> <br />Afghan and NATO forces quickly arrived at the scene and recovered several vests packed with explosives.<br/> <br />Officials say three other attackers died in a firefight following the blast.<br/> <br />Violence has been on the rise in Afghanistan as NATO-led troops prepare to the leave the country by the end of
