![The screen shows that the first of 566 used and unused fuel units stored in the pool at Unit 3 are being removed, at Fukushima Dai-ichi nuclear plant, in Okuma, Fukushima Prefecture, northeastern Japan Monday, April 15, 2019. (Photo/IC)](http://www.ecns.cn/hd/2019/04/15/8a3f9831911b4201aa697afd1357333f.jpg)
The screen shows that the first of 566 used and unused fuel units stored in the pool at Unit 3 are being removed, at Fukushima Dai-ichi nuclear plant, in Okuma, Fukushima Prefecture, northeastern Japan Monday, April 15, 2019. (Photo/IC)
![The screen shows that the first of 566 used and unused fuel units stored in the pool at Unit 3 are being removed, at Fukushima Dai-ichi nuclear plant, in Okuma, Fukushima Prefecture, northeastern Japan Monday, April 15, 2019. (Photo/IC)](http://www.ecns.cn/hd/2019/04/15/1b82bcf5f3f94f3fbc81cbaeb3bd88a9.jpg)
The screen shows that the first of 566 used and unused fuel units stored in the pool at Unit 3 are being removed, at Fukushima Dai-ichi nuclear plant, in Okuma, Fukushima Prefecture, northeastern Japan Monday, April 15, 2019. (Photo/IC)
![A Tokyo Electric Power Co. worker explains the operation at Unit 3 of Fukushima nuclear plant, in Okuma, Fukushima Prefecture, northeastern Japan Monday. April 15, 2019. The operator of the tsunami-wrecked nuclear plant has begun removing fuel from a cooling pool at one of three reactors that melted down in the 2011 disaster, a milestone in the decades-long process to decommission the plant. (Photo/IC)](http://www.ecns.cn/hd/2019/04/15/787a439ef01f4e5688232e988af71d3e.jpg)
A Tokyo Electric Power Co. worker explains the operation at Unit 3 of Fukushima nuclear plant, in Okuma, Fukushima Prefecture, northeastern Japan Monday. April 15, 2019. The operator of the tsunami-wrecked nuclear plant has begun removing fuel from a cooling pool at one of three reactors that melted down in the 2011 disaster, a milestone in the decades-long process to decommission the plant. (Photo/IC)