Flash flooding and cold lava flows in Sumatra have caused at least 34 fatalities and 16 missing persons.

The disasters struck West Sumatra province, particularly impacting Agam and Tanah Datar districts.

Mount Marapi's release of volcanic material contributed to the severity of the situation.

Search and rescue operations are underway with local rescuers, police, soldiers, and volunteers responding.

There has been significant damage to residential areas, public facilities, and infrastructure.

Environmental activists cite deforestation as a factor exacerbating the flood's impact.

Mount Marapi's eruption in December 2022 previously resulted in at least 24 climber deaths, highlighting the ongoing risks from the volcano.