Japan earthquake: nuclear disaster feared after power plant 'explosion'

From the UK Telegraph:

Japan is battling to avoid a nuclear disaster after an explosion at a power plant in the aftermath of the country’s biggest earthquake and devastating tsunami.

A huge blast has caused further damage at one of two nuclear power plants which the Japanese government had placed under a state of emergency, compounding fears of a nuclear meltdown.

A loud blast was heard at the plant in Fukushima following a series of aftershocks. White smoke.