At least 41 people have now been confirmed dead after hours of torrential rain triggered flash floods and cold lava flow from a volcano in western Indonesia over the weekend.
A local disaster official told local news agency that 17 other people remained missing after the downpour on Saturday night swept ash and large rocks down Mount Marapi, the most active volcano on Sumatra island.
Three people are missing in the Agam district and 14 in Tanah Datar, both the worst-hit areas of the flood and home to hundreds of thousands of people, Ilham Wahab, an official with the West Sumatra disaster mitigation agency
About 400 people, including police, soldiers and local rescue squads, have been deployed to search for the missing, using at least eight excavators and drones.
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