Indonesia Humanitarian Coordination Platform (IHCP) Situation Report #1 - Floods, flash floods and landslides - Provinces of Aceh, North Sumatra, and West Sumatra (December 2, 2025)

This report was compiled and published by the Indonesia Humanitarian Coordination Platform. This report covers the period 1 to 2 December. The next report will be published on or around December 3.

Highlights

• Floods and landslides due to heavy rains hit the provinces of Aceh, West Sumatra, and North Sumatra, affecting 37 districts/municipalities.

• The worst-affected areas are North Sumatra Province, in Central Tapanuli, South Tapanuli, and Sibolga Districts.

• As of November 30, 2025, the death toll has reached 442. 402 people are still missing, and 638 others are injured.

• On December 1, President Prabowo Subianto visited disaster-affected areas in Aceh, North Sumatra, and West Sumatra consecutively and reinforces national leadership in response to the disaster.

• The Meteorology, Climatology, and Geophysics Agency (BMKG) projects December 2025 as one of the peak periods of the rainy season in Indonesia.

442 Deaths (BNPB)

402 Missing persons (BNPB)

335,139 people (BNPB)

638 Wounded (BNPB)

Situation Report

• Consecutive heavy rains between November 22 and 25 caused floods and landslides in Aceh Province (18 districts/cities), West Sumatra (9 districts/cities), and North Sumatra (10 districts/cities). The worst-affected areas are in North Sumatra Province, in Central Tapanuli, South Tapanuli, and Sibolga districts. Several provincial and national lines were cut off due to landslides and damaged bridges, making it challenging to access distribution routes. Until now, some areas are still inaccessible by land. The media reported that looting occurred at Bulog's warehouse in Central Tapanuli, Sibolga, North Sumatra, due to food aid shortages. Looting also occurred in several minimarkets. TNI and the Police are assigned to maintain security.

• The Head of the National Disaster Management Agency (BNPB) in his press conference on November 30 reported that the death toll had reached 442. A total of 402 people are still missing, and at least 638 are injured.

• In North Sumatra, 217 people were reported dead, and 209 people are still missing. The Local Disaster Management Agency (BPBD) in North Sumatra still has difficulties collecting data due to severe damage to transportation access in the affected areas. There are at least 17,954 IDPs at six displacement points.

• In Aceh, 96 people died, 75 people were missing, and eight people were injured. The number of IDPs reached 62,000 HH/239,267 people spread across 18 points in various regions, with the highest distribution in North Aceh, Bener Meriah, Central Aceh, and Aceh Singkil. Numerous damaged bridges and national roads have cut off key access, including the Banda Aceh-Lhokseumawe route and the Aceh-North Sumatra border in Aceh Tamiang. Until now, some areas, such as Gayo Lues, Central Aceh, and Bener Meriah, are still inaccessible by land. As of November 28, 2025, Aceh Provincial Government reported that 31 road points and 24 bridges were damaged.

• In West Sumatra, the number of casualties has reached 129, 118 people are missing, and 16 people were injured. Agam Regency recorded the highest number of fatalities. Preliminary data show that 11,820 HH/77,918 people have been displaced, especially in Padang City and South Coast Regency.

• BNPB compiles the updates on disaster emergency response data in Aceh, North Sumatra, and West Sumatra at https://gis.bnpb.go.id/BANSORSUMATERA2025/

• The flash floods and landslides in the three provinces have left many areas isolated, as connecting roads and bridges have been destroyed. A food crisis has occurred in several isolated areas, with power outages and telephone connections. Fuel supplies have been disrupted.

• Three district heads (Aceh Tengah, Pidie Jaya, Aceh Selatan) have expressed their inability to handle the disaster in their regions and asked the central government to take over. Home Affairs Minister acknowledged on December 1 that the government need for better preparedness to respond to large-scale and rapid-onset disaster in the three provinces. The minister acknowledged the overwhelming needs in the affected districts.

• BMKG projects that the rainy season peak will occur from November 2025 to early 2026, making December a period with potential for heavy rain, lightning, strong winds, and even whirlwinds, particularly in Java.