 All personnel including the international UN staff member managed to escape by reversing their route only to come under fire by a United States Army patrol of Humvee vehicles that were advancing to the location of the fire fight.Two Afghan personnel, one driver and the armed guard commander from the Ministry of Interior, were wounded by the friendly fire and evacuated by helicopter to Kandahar.The armored vehicle that the UN worker was traveling in was unable to be driven due to being hit with approximately fifteen rounds of fire including two rounds from a .50 caliber machine gun.