Cold lava flow is a mud-like mixture of volcanic ash, rock debris and water that flows down a volcano’s slopes in the rain. It is also known in Indonesia as a lahar.

Jakarta [Indonesia], May 12 (ANI): At least 28 people, including children, have died after flash floods and cold lava flew from a volcano hit western Indonesia, Al Jazeera reported, citing rescue ...

The eruption of the 3,676-metre-high volcano happened between 2:38 am and 9:27 am (local time), with southwesterly winds.