Toshiba Corp. tried Wednesday to reassure shareholders over its nuclear business amid uncertain prospects due to the crisis in Fukushima Prefecture, vowing to increase the safety of its atomic plants.

The electronics company, which delivered reactors to the disaster-hit Fukushima No. 1 power plant, said it has set up a team to address the crisis in support of Tokyo Electric Power Co.

Regarding existing plants, "We'll deal with permanent improvement in accordance with safety standards that will be revised based on analysis" of the crisis, Toshiba President Norio Sasaki said.