Forecasters say more flooding and landslides could hit Sao Paulo state . At least 655 deaths are reported in Rio de Janeiro state . The death toll from the floods is expected to rise as rescue efforts continue through Sunday. Troops arrive to help rescue those who are trapped .
Forecasters say more flooding and landslides could hit Sao Paulo state . At least 655 deaths are reported in Rio de Janeiro state . Officials warn of the risk of waterborne diseases . Troops arrive to help rescue those who are trapped .