A large earthquake has hit Japan.
The 6.1 magnitude tremor was reported in the north of the country's Okinawa prefecture.
There have been immediate reports of damage or casualties.
The quake hit at a depth of 257 km about 346 km north of the city of Naha.

Zambia steps up Ebola screening as neighbouring Congo sees cases rise
Pentagon chief says US ready to restart strikes on Iran if no deal
Flights briefly halted at Munich Airport over possible drone sighting
Myanmar's junta chief turned president heads to India
Three Latvian climbers die in fall from Mount McKinley in Alaska
