An earthquake has struck southern Japan, bringing down several houses, BBC reports citing a top government spokesman.
No tsunami warning was issued after the quake, measured at a preliminary magnitude of 6.4, according to the report.
The earthquake struck at 21:26 (1226 GMT) east of Kumamoto city, on the island of Kyushu, the Japan Meteorological Agency says.
The Sendai and Genkai nuclear plants on Kyushu are reported to be operating as normal.
No casualties have yet been confirmed though police in Kumamoto prefecture say people may be trapped in collapsed houses.