JAPAN NUCLEAR ACCIDENTA photo taken and released on 09 October 2013 by Tokyo Electric Power Co . ( Tepco ) , shows workers wearing protective outfit working on a water leak at the crippled Fukushima Daiichi Nuclear Power Plant in Okuma , northeast of Tokyo , Fukushima Prefecture , Japan . On 09 October 2013 , Tokyo Electric Power Co said that radiation - contaminated water leaked from a desalination facility at Japan ' s stricken Fukushima nuclear plant . Six of the 11 workers at the scene were likely covered with the tainted water . The workers accidentally disconnected a pipe to the desalination facility , which caused a leak for more than 50 minutes in the morning at the Fukushima Daiichi Nuclear Power Station . About 10 tons of water may have leaked . EPA / TEPCO / HANDOUT HANDOUT EDITORIAL USE ONLY / NO SALES ▶   연합뉴스 " 모바일 앱 다운 받 기 "▶   지금 뉴스 스탠드 에서 뉴스 Y 를 만나 보 세요 ! ▶   그림 으로 보 는 " 인터랙티브 뉴스 "< 저작권자 ( c ) 연합뉴스 . 무단 전재 - 재배 포금 지 . >