The Japanese government has pledged 47 billion yen (£303m) to contain leaks at the crippled Fukushima nuclear plant, a government spokesman has said.
It follows the detection of a serious leak from one of the storage tanks containing contaminated water on site.
"The contaminated water problem is getting more critical by the day, and the government felt it was essential to become involved to the greatest extent possible," Chief Cabinet Secretary Yoshihide Suga said.
He said that the funds would be used for a water containment wall and decontamination.
More top news
Charlton Athletic Football Club have launched an internal investigation over an allegation of historical sexual abuse.
The government is "deeply concerned" by reports of UK weapons being used by the Saudis in strikes on civilians in Yemen, Boris Johnson says.
Cold and sunny for most, increasingly cloudy from the west. Cloud and wind spreading from the west of UK.