Damage to the interior of a structure at the Fukushima No. 1 nuclear power plant can be seen in a photo released on Wednesday by Tokyo Electric Power Company Holdings, Inc.
The image shows the inside of the pedestal, a cylindrical reinforced concrete base supporting the reactor pressure vessel of the power plant's No. 1 reactor. Part of the pedestal's inner wall can be seen to have melted away, exposing its rebar.
The image was taken by a remotely controlled underwater robot on Tuesday. The concrete may have been damaged by the heat from melted-down nuclear fuel during the March 11, 2011, nuclear disaster.
