Radiation at a tank holding highly contaminated water at Japan's crippled Fukushima nuclear plant has spiked 18-fold, the plant's operator has said.
Radiation of 1,800 millisieverts per hour - enough to kill an exposed person in four hours - was detected near the bottom of one storage tank on Saturday, Tokyo Electric Power Co , also known as Tepco, said.
A Tepco spokesman also said a new leak had been detected from a pipe connecting two other tanks.
The Fukushima plant was destroyed by a tsunami in March 2011 in the worst nuclear disaster since Chernobyl a quarter of a century earlier.
More top news
Noel Edmonds beat off competition from Ant and Dec to be voted Britain's favourite children's TV presenter.
A number of teenagers - including some who have never smoked - are experimenting with e-cigarettes, a study has found.
Singer Lil' Chris - who was found dead last week - suffered with depression and mental health issues for years, his family said.