Members of the media wearing protective suits and masks are escorted around the site of the nuclear power plant Photograph: Issei Kato/ReutersA radiation monitor indicates 102 microsieverts per hour outside the sitePhotograph: Issei Kato/ReutersOfficials from Tokyo Electric Power Co (Tepco) and members of the media are driven past sea defences next to the plant, which was overwhelmed by the tsunami last yearPhotograph: Issei Kato/Reuters
Workers in masks construct water tanks at the power stationPhotograph: Issei Kato/ReutersA worker on the roof of the No 4 reactor building Photograph: Issei Kato/ReutersAn employee prepares for work in front of an information board inside the plant's emergency operation centrePhotograph: Issei Kato/ReutersFlags covered with handwritten messages of support from members of the public and foreign countries hang inside the emergency operation centrePhotograph: Issei Kato/ReutersA worker is given a radiation screeningPhotograph: Issei Kato/ReutersUpturned trucks lie around the No 4 reactor Photograph: Issei Kato/ReutersThousands of origami cranes, made in memory of the earthquake and tsunami victims, are displayed at the emergency operation centre Photograph: Issei Kato/ReutersOfficials from Tepco receive a safety inspection report from members of the Nuclear and Industrial Safety AgencyPhotograph: Issei Kato/Reuters
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