TOKYO (AP) — Japan’s top nuclear regulator has urged the utility to take “drastic” steps to improve working conditions and funding to resolve a spate of mishaps at the crippled nuclear plant that has triggered international concerns.

Fukushima Dai-ichi nuclear plant. Pic: AP.

Nuclear Regulation Authority Chairman Shunichi Tanaka told Tokyo Electric Power Co. President Naomi Hirose in Monday’s meeting that he was seriously concerned about the problems. Hirose acknowledged the plant is having trouble finding experienced workers, but promised to send more staff from TEPCO’s other plants to Fukushima.

The talks were closed except for few minutes at the beginning.

The problems at the Fukushima Dai-ichi plant have raised concerns about TEPCO’s ability to tackle the crisis. Tanaka summoned Hirose to seek solutions to what he says appear to be fundamental problems.