In pictures: Fukushima's nuclear woes
A look inside the continuing crisis northeast of Tokyo, which started in 2011 when an earthquake triggered massive radiation leaks at the Fukushima nuclear power plant.
A worker wearing a protective suit prepares to exit the emergency operation center at Tokyo Electric Power Co. (TEPCO)'s tsunami-crippled Fukushima Daiichi nuclear power plant in Fukushima prefecture in this February 20, 2012 file photograph.ISSEI KATO/Reuters
Handout file photo from Tokyo Electric Power Co. shows workers attempting to repair power lines at the Fukushima Daiichi Nuclear Power Plant in Tomioka, Fukushima Prefecture northeastern Japan, March 18, 2011.KYODO/Reuters
A worker is seen in front of the Rest Area at 1st floor doorway in the Service Building of No.5 and No.6 reactors at Tokyo Electric Power (TEPCO) Co.'s Fukushima Daiichi Nuclear Power Station in Fukushima prefecture, May 19, 2011, in this handout file photograph released by TEPCO on June 10, 2011.HANDOUT/Reuters
An empty shopping street is seen in Tomioka town, inside the exclusion zone of a 20km radius around the crippled Fukushima Daiichi nuclear power plant, Fukushima prefecture, in this January 15, 2012 file photograph.STRINGER/Reuters
An empty shopping street, under a sign reading "Nuclear Power - The Energy for a Better Future", is seen at the entrance of Futaba town, inside the exclusion zone of a 20km radius around the crippled Fukushima Daiichi nuclear power plant, Fukushima prefecture, in this January 15, 2012 file photograph.STRINGER/Reuters
Tsunami devastated ships and debris are seen at Ukedo district in Namie town, inside the exclusion zone of a 20-km (12-mile) radius around the crippled Fukushima Daiichi nuclear power plant in Fukushima prefecture in this January 28, 2012 file photograph.ISSEI KATO/Reuters
A worker is screened for radiation as he enters the emergency operation center at Tokyo Electric Power Co. (TEPCO)'s tsunami-crippled Fukushima Daiichi nuclear power plant in Fukushima prefecture in this February 20, 2012 file photograph.ISSEI KATO/Reuters
A general view of a building of Tokyo Electric Power Company's (TEPCO) tsunami-crippled Fukushima Daiichi nuclear power plant is seen from a bus during a media tour at the plant in Fukushima prefecture in this June 12, 2013 file photograph.POOL/Reuters
The level of radiation is seen near the abandoned civic centre at the tsunami destroyed coastal area of the evacuated town of Namie in Fukushima prefecture, only some 6 km (4 miles) from the crippled Daiichi power plant in this September 15, 2013 file photograph.DAMIR SAGOLJ/Reuters
Rubber gloves are left outside a house in the evacuated town of Namie in Fukushima prefecture in this September 13, 2013 file photograph.DAMIR SAGOLJ/Reuters
A beach littered with tsunami barriers, wreckages of cars and other debris is seen at the coastal area of the evacuated town of Namie, with cranes and chimneys of the crippled Daiichi nuclear power plant in the background, in Fukushima prefecture in this September 23, 2013 file photograph.DAMIR SAGOLJ/Reuters