Japan makes slow progress with nuclear reactors

A day after Japanese officials reported progress towards regaining control of the Fukushima nuclear plant, smoke has been rising from two of its reactors.

Some workers at the stricken facility were temporarily evacuated after smoke was seen rising from reactor No 3. White smoke was later seen rising from the No 2 reactor.

Meanwhile, the World Health Organization says the spread of radioactive material from the site is more serious than it first thought.

The BBC's Roland Buerk reports.