Fukushima worker 'unconscious' after accident: plant operator
Japanese officials inspect the crippled Fukushima nuclear power plant on June 17, 2011
The man, in his 50s, was in a critical condition a few hours after the accident, the company said.
"A worker was buried during the process of digging a hole. He was later rescued but is unconscious now," a spokesman for Tokyo Electric Power Co. (TEPCO) said.
The man was hired by one of the many subcontractors working to stabilise the huge plant more than three years after it was battered by the monster tsunami of March 2011.