Japan faced a fresh radiation threat at an earthquake-crippled nuclear plant on Sunday after the cooling system failed at a second reactor.

Survivors of Japan’s earthquake and tsunami huddled in shelters and hoarded supplies on Saturday as rescue workers searched a mangled coastline.

Radiation leaked from a Japanese nuclear reactor north of Tokyo on Saturday, after an explosion blew the roof off the facility.

Japan scrambled on Saturday to avert a disastrous meltdown at a nuclear plant damaged when a massive earthquake and tsunami struck the coast.

Japan scrambled on Saturday to reduce pressure in two nuclear plants damaged after a massive earthquake and tsunami struck its north-east coast.