First drone survey inside the Fukushima Daiichi nuclear power plant containment vessel canceled due to malfunction. TEPCO has investigated the cause and hopes to resume the investigation as soon as the problem is resolved, but there are no plans at this time.
Immediately after Unit 1 was hit by the tsunami, cooling of the nuclear fuel became impossible, and it is estimated that most of it melted down in a short period of time and crashed through the bottom of the reactor. The ability to confirm whether there are holes in the image is attracting attention.