Fears rise over more damage at Fukushima

The operator of the Fukushima Daiichi Nuclear Power Plant on Sunday found that the pressure inside one of the reactor containment vessels had dropped, raising concern over additional damage and further complicating the plant's already difficult decommissioning process.

In an official statement on its website, Tokyo Electric Power Company, or TEPCO, said it confirmed that at around 6 pm on Sunday, pressure inside the vessel of its Unit 1 reactor dropped to 0.9 kilopascals from the usual 1.2 kilopascals.

The reason for the drop, the company said, was probably an earthquake that hit the area on Feb 13.