A volcano in southern Japan has erupted for the first time in 250 years, spewing steam and ash hundreds of metres into the air, as authorities warned locals not to approach the mountain.
"There is a possibility that (Mount Io) will become more active," an official from the Japan Meteorological Agency (JMA) said, confirming the eruption.
In a televised press conference, the official warned residents in the area to stay away from the mountain, part of the Mount Kirishima group of volcanoes, as major ash deposits spread from the crater.
It was the first eruption of the mountain since 1768, the JMA said.
The agency warned that large flying rocks could fall over a 3km radius.
The eruption threw smoke and ash 400m into the air.
Footage captured by the JMA and local media showed thick white and grey smoke rising from several areas of the mountain.
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There were no immediate reports of injuries, Chief Cabinet Secretary Yoshihide Suga said, adding that the Japanese government was "taking all possible measures" to prevent damage and casualties.
The eruption occurred a few kilometres away from Shinmoedake, which featured in the 1967 James Bond film "You Only Live Twice" and erupted in March.
Japan, with scores of active volcanoes, sits on the so-called Pacific "Ring of Fire" where a large proportion of the world's earthquakes and volcanic eruptions are recorded.
In January, a Japanese soldier was killed and several other people injured after an eruption near a popular ski resort in northwest of Tokyo.
On 27 September 2014, Japan suffered its deadliest eruption in almost 90 years when Mount Ontake, in central Nagano prefecture, burst unexpectedly to life.
An estimated 63 people were killed in the shock eruption, which occurred as the peak was packed with hikers out to see the region's spectacular autumn colours.
