Awwal 05, 1432, April 09, 2011, SPA -- The operator of a damaged nuclear power station in north-eastern Japan said radiation levels in seawater near the plant had risen, a news report said Saturday. Tokyo Electric Power Co (TEPCO) said it found on Thursday 110 becquerels of radioactive iodine-131 per cubic centimeter in seawater samples collected near the northern part of the Fukushima Daiichi Nuclear Power Station, which was crippled by a March 11 earthquake and tsunami. The figure was 2,800 times higher than the legal limit. At the same spot, the operator detected 600 times the standard Tuesday and 1,000 times Wednesday, the public broadcaster NHK said. The operator also found a reading 9.3 times the limit off the coast of Minami-soma, 15 kilometres north of the plant, DPA reported.