Japan's Sakurajima volcano is spewing a cloud of smoke 5000 metres into the sky.
It's sending a rain of ash so thick onto a nearby town on the southern Island of Kyushu that drivers are having to turn on their headlights in broad daylight.
The falling ash also disrupted train service in Kogashima, the Jiji Press agency reported.
Injuries and damage have not reported, and experts say an eruption of magma is unlikely.
Sakurajima has belched clouds of ash 500 times this year.
Authorities have warned nearby residents to be alert that the 1117-metre volcano could spew more ash and small stones.