Strong earthquake, tsunami warning in south Japan
Japan's meteorological agency says a magnitude 6.9 earthquake hit off Japan's southern coast, and has issued a tsunami warning in the region.
Officials say the quake occurred off the coast of the island of Okinawa. They predicted a tsunami up to 3 feet (1 meter) near the Okinawan coast.
There were no immediate reports of damage or casualties.
Japan is one of the world's most earthquake-prone countries.