Locals in the Indonesian province of East Java fled in terror after an eruption at Mount Semeru sent volcanic ash 40,000 feet into the air.
Video posted to Twitter shows residents screaming as the ash plume mushroomed behind them, blocking out the sun, according to some accounts on social media.
No casualties have been reported so far. Images from the stricken province show motorbikes and homes under deep shales of dust and mud.
“Thick columns of ash have turned several villages to darkness,” Thoriqul Haq, a local official, told TV One, Al-Jazeera reported.
Indonesia — a country of more than 270 million people — sits around the infamous “ring of fire” with more than 128 active volcanos dotted along a string of fault lines.