The most powerful earthquake to hit Japan since records began has hit the country's north-east and triggered a devastating tsunami.
Japanese TV showed cars, ships and buildings swept away by a vast wall of water after the 8.9-magnitude quake.
A state of emergency has been declared at a nuclear power plant but officials said there were no radiation leaks.
At least 60 people have been killed by the quake, which struck about 400km (250 miles) north-east of Tokyo.
The death toll is expected to rise significantly.
Some reports quote Japanese police as saying 200 to 300 bodies have been found in the port city of Sendai.