Burma's state media on Tuesday urged people to take precautions against disease in regions hit by tropical Cyclone Nargis. The cyclone tore through south-western Burma at the weekend, devastating the Irrawaddy Delta region and hammering the nation's main city of Rangoon. Many of the city's six million people were spending a fourth day on Tuesday without water or electricity, as trash and debris piled on the sidewalks. State radio urged people to safeguard their health and "to drink boiled water and keep pests out of food."