Flood in Sumatra, Indonesia

Heavy rains triggered flash floods and caused torrents of cold lava and mud to flow down a volcano's slopes on Indonesia's Sumatra island, killing at least 41 people and leaving more than a dozen others missing.

The National Disaster Mitigation Agency (BNPB) deployed around 400 personnel, including rescuers, police, and military to search for the missing people and organise evacuations of the worst affected areas. Several emergency management measures were put in place, including restoring road access, removing landslide material, and coordinating with regional organizations.

The cold lava flow, known in Indonesia as a lahar, came from Mount Marapi, one of Sumatra's most active volcanoes. More than 20 people were killed when Marapi erupted in December. A series of eruptions have followed since.

Nearby Sulawesi has also been badly affected

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