Kiyoshi Takenaka

Japanese nuclear power plant operator Tepco expects to stop pumping radioactive water into the ocean on Monday, days later than planned.

Japanese engineers toiled frantically to avert a catastrophic release of radiation from a crippled nuclear power plant north of Tokyo on Friday.

Japanese engineers worked through the night to lay a 1,5km electricity cable to a crippled nuclear power plant in the hope of restarting pumps.