The troubled nuclear power plant in Fukushima Prefecture, northeastern Japan, may have suffered damage to the pressure vessels of its No. 1, No. 2 and No. 3 reactors, its operator said Monday.
This is because the vessels are not yet filled up with water despite continued water pumping efforts, officials at Tokyo Electric Power Co. <9501> said at a news conference.
In addition, water contaminated with radioactive substances was found in the basement of the turbine buildings of the reactors, the officials said.
But the officials said details of how the situation is inside the vessels are not known.
The company has been trying to restore functions at the reactors’ control rooms in order to obtain accurate data about levels of water and pressure inside the vessels.