A sandstorm hit Guazhou County in northwest China's Gansu Province on Friday afternoon. <br /> <br />Mobile phone videos showed the height of the wall of sand was over three times that of five-story buildings. The whole county was enveloped by the storm in less than ten minutes. <br /> <br />The storm brought strong gales, with speed of more than 75 kilometers per hour, and dropped visibility to less than 600 meters. <br /> <br />Due to the decreased visibility five vehicles collided on a highway causing a fire and leaving one person injured. <br /> <br />A short rainstorm cleared the skies across the county later. <br /> <br />As the storm moved fast and was over quickly, it did not cause much damage to the local industries or agriculture.
