Tokyo Electric Power Co. said Friday that it has finished transferring the first batch of fuel rod assemblies from the Fukushima No. 1 plants reactor 4 spent fuel pool to another building with more stable storage conditions.

"All of the fuel assemblies have been placed in the storage rack (inside the common pool), meaning the first fuel transfer work effectively ended," Tepco official Noriyuki Imaizumi told a press conference.

After reviewing the work flow that started Monday, the utility will move on to retrieve the next batch of fuel assemblies from the spent fuel pool of the damaged reactor 4 building.