Fox News Flash top headlines are here. Check out what's clicking on Foxnews.com. At a small section of the Fukushima Daiichi nuclear plant's central control room, the treated water transfer switch is on. A graph on a computer monitor nearby shows a steady decrease of water levels as treated radioactive wastewater is diluted and released into the Pacific Ocean. In the coastal area of the plant, two seawater pumps are in action, gushing torrents of seawater through sky blue pipes into the big header where the treated water, which comes down through a much thinner black pipe from the hilltop tanks, is diluted hundreds of times before the release.

Japan is poised to flood the Pacific Ocean with one million tons of radioactive water contaminated by the Fukushima nuclear plant. Storage space at the abandoned facility is running dangerously low as officials race to secure the nearly 160 tons of contaminated water produced at the plant per day. As space for tanks dwindles the Japanese government and the plant's owner Tokyo Electric Power Company (Tepco) may decide to dump treated water into the ocean. Japan is poised to flood the Pacific Ocean with one million tons of radioactive water contaminated by the Fukushima nuclear plant. This image shows the transportation of one of the plant's large steel storage tanks Tepco plans to secure 1.37 million tons of storage capacity by the end of 2020, but it has not yet decided on a plan for after 2021.

Contaminated water might have leaked from the damaged Fukushima nuclear reactors after erroneous settings on water gauges lowered groundwater levels nearby, according to the plant operator. Tokyo Electric Power (TEPCO) said the settings on six of the dozens of wells around the reactors were 70 centimetres (three feet) below the requirement. Groundwater at one well briefly sank below the contaminated water inside in May, possibly causing radioactive water to leak into the soil. An underwater robot has captured images inside Japan's crippled Fukushima nuclear plant. The marine robot, is on a mission to study damage and find resources inside the devastated plant.

An underwater robot captured images of solidified lava-like rocks Thursday inside a damaged reactor at Japan's crippled Fukushima nuclear plant, spotting for the first time what is believed to be nuclear fuel that melted six years ago. Plant operator Tokyo Electric Power Co. said the robot found large amounts of lava-like debris apparently containing fuel that had flowed out of the core into the primary containment vessel of the Unit 3 reactor at Fukushima. The plant was destroyed by a massive earthquake and tsunami in March 2011. This image captured by an underwater robot shows lava-like lumps believed to contain melted fuel inside the Unit 3 reactor at Fukushima. Experts believe the fuel melted and much of it fell to the chamber's bottom and is now submerged by radioactive water.

A Japanese robot has begun probing the radioactive water at Fukushima's nuclear reactor. The marine robot, nicknamed the'little sunfish', is on a mission to study structural damage and find fuel inside the three reactors of the devastated plant. Experts said remote-controlled bots are key to finding fuel at the dangerous site, which has likely melted and been submerged by highly radioactive water. A Japanese robot has begun probing the radioactive water at Fukushima's nuclear reactor. An underwater robot has captured images and other data inside Japan's crippled Fukushima nuclear plant on its first day of work.