That same year, the Texas Commission on Environmental Quality investigated a complaint that the area around the plant smelled of ammonia.

CNN: SHARE THIS

The loss includes 400bn yen put aside by Tepco to compensate victims of the disaster, which forced 80, 000 people to be evacuated from the area around the Fukushima plant.

BBC: Fukushima plant owner Tepco reports $7.4bn loss

The governor of the region at the centre of Japan's nuclear crisis has criticised official handling of the evacuation of the area around the stricken Fukushima Daiichi power plant.

BBC: Japan earthquake: Anger over Fukushima evacuation plan

About 160, 000 people had to be evacuated from the area around the nuclear plant, where meltdowns occurred at three reactors after tsunami waters knocked out cooling systems.

BBC: Japan marks quake and tsunami anniversary

Ukraine's government says an area larger than Switzerland was affected, and a 30-km (19-mile) radius around the plant remains all but uninhabited.

CNN: Chernobyl's 25-year shadow