Further heavy rain threatened Indonesia's flood-ravaged island of Sumatra on Saturday as the governor of one hard-hit province warned that the death toll could climb beyond 883 because of starvation.A chain of tropical storms and monsoonal rains has pummelled Southeast and South Asia, triggering landslides and flash floods from the Sumatran rainforest to the highland plantations of Sri Lanka.Some 1,770 people have been killed in natural disasters unfolding across Indonesia, Sri Lanka, Malaysia, Thailand and Vietnam since last week.Indonesia's national weather agency said rain could return on Saturday to the provinces of Aceh and North Sumatra, where floods have swept...