TOKYO, March 11 A fire broke out at Tohoku Electric Power Co's (9506.T) Onagawa nuclear plant in northeastern Japan following Friday's major earthquake, Kyodo news agency said.
Prior to the Kyodo report, the company had said it had not received information on whether there had been any problems at the nuclear power plant after the disaster.
Separately, Fukushima Prefecture, the site of a Tokyo Electric Power (9501.T) nuclear power plant, said on Friday the plant's reactor cooling system was functioning, denying an earlier report that it was malfunctioning.
Japanese media reported that the government had decided to declare a nuclear power emergency situation, which occurs if there is confirmation of radioactivity leaks from a nuclear power plant or a reactor cooling system breaks down. (Reporting by Chikako Mogi and Risa Maeda; Editing by Edmund Klamann)