BBC News

IAEA chief: Japan's nuclear situation is 'very serious'

The head of the International Atomic Energy Agency, Yukiya Amano, has said that the nuclear situation in Japan is "very serious".

Engineers are racing to avert a nuclear catastrophe at Fukushima Daiichi, badly damaged by Friday's quake and tsunami.

Mr Amano said radiation levels have increased slightly in Tokyo but that hey are "not dangerous to human health".