Sandstorm hits Riyadh of Saudi Arabia

A huge sandstorm engulfs Riyadh, capital of Saudi Arabia, March 10, 2009. The storm, which was still raging hours after it started, disrupted flights at the city's King Khalid International airport, with weather authorities announcing that visibility would drop to zero, and warning residents to take precautionary measures.
A Saudi man covers his face to protect himself from sand while walking in Riyadh March 10, 2009.