Indonesian rescue teams flew aid to remote districts around Jakarta on Saturday, as the government announced that the death toll had risen to at least 60.
National Disaster Mitigation Agency spokesman Agus Wibowo said the fatalities included those who had drowned or been electrocuted.
The situation worsened when rivers broke their banks early Wednesday, after torrential rains that began on New Year's Eve unleashed flash flooding and landslides.
Stranded amid floods
Tens of thousands of people in the capital were unable to return to their homes, with fears growing about the possibility of more heavy rainfall. At one point more than 170,000 people sought refuge in shelters across Jakarta's massive urban conglomeration, after whole neighborhoods were submerged.
Further south, in the Lebak municipality, police and military personnel dropped boxes of noodles and other supplies into isolated districts supplies by helicopter. Many areas have been made inaccessible by road after bridges were destroyed, while blackouts and bad weather have hampered rescue efforts.
"It's tough to get supplies in there," police chief Tomsi Tohir told the a news agency. "There are about a dozen places hit by landslides."
Cloud seeding
The government on Friday started cloud seeding — inducing rain by using chemicals sprayed from planes — to the west of Jakarta. It was hoped this would prevent approaching rainfall from exacerbating the situation by making it fall earlier before reaching the capital region.
Jakarta's numerous infrastructure shortcomings, including bad drainage and runaway overdevelopment, are thought to have worsened the situation in the city.
Indonesian President Joko Widodo announced in August a plan to move the country's capital to the Indonesian part of the island of Borneo, an idea that some environmentalists fear will exacerbate deforestation.