Nuclear scare after Japan quake

A strong earthquake in central Japan has damaged a large nuclear power plant causing a leak of radioactive material, officials at the plant have said.

Water containing radioactive substances leaked into the sea and a fire broke out at the Kashiwazaki plant.

Reactors at the plant automatically shut during the magnitude 6.8 quake. Officials said only a small amount of material escaped.

At least seven people were killed and hundreds injured in the earthquake.

Tokyo Electric Power Company said the amount of radioactive material that leaked into the sea posed no environmental risk.