Torrential rains across the region
Prabowo has come under increasing pressure to declare a national emergency in response to flooding and landslides that have killed at least 442 people, with hundreds more missing.
Unlike his Sri Lankan counterpart, he has also not publicly called for international assistance.
The toll is the deadliest in a natural disaster in Indonesia since a massive 2018 earthquake and subsequent tsunami killed over 2,000 people in Sulawesi.
The government has sent three warships carrying aid and two hospital ships to some of the worst-hit areas, where many roads remain impassable.
Rising anger in Thailand and Malaysia
By Sunday afternoon, rain had subsided across Sri Lanka but low-lying areas of the capital were flooded and authorities were bracing for a major relief operation.
Military helicopters have been deployed to airlift stranded residents, and deliver food, though one crashed just north of Colombo on Sunday evening.
Selvi, 46, a resident of the Colombo suburb of Wennawatte, left her flooded home on Sunday, carrying four bags of clothes and valuables.
“My house is completely flooded. I don’t know where to go, but I hope there is some safe shelter where I can take my family,” she told AFP.
Much of Asia is currently in its annual monsoon season, which often brings heavy rain, triggering landslides and flash floods.
But the flooding that hit Indonesia, Thailand and Malaysia was also exacerbated by a rare tropical storm that dumped heavy rain on Sumatra island in particular.
Climate change has also increased the intensity of storms, and produced more heavy rain events because a warmer atmosphere holds more moisture.