Floods that have sent about 40,000 people fleeing their homes in Indonesia's capital wrought more havoc Saturday, with many parts of the city under neck-deep water and authorities warning more rivers may burst their banks. Two days of incessant rain triggered floods in Jakarta that inundated thousands of homes, government buildings and businesses Friday, forcing authorities to cut off electricity and water supplies. Waters had receded slightly Saturday in some city-center districts but were rising in outlying areas, media reports said. Several main roads leading to the city of 12 million people were blocked, and the rail network was crippled. About 42,000 people had either fled their homes or been rescued by soldiers using dinghies, said Zaini, an official at the city's disaster relief center. Like many Indonesians, Zaini goes by a single name.