A reactor at the Swedish energy company Vattenfall-operated nuclear power plant at Ringhals in Western Sweden was automatically shut down Monday after a fire alarm went off, according to management at the plant, DPA reported. The alarm was set off by smoke at one of the two generators, according to managment. However, there was no actual fire. The reactor was brought back into use after the incident and resumed electricity production at half-strength. The plant was disrupted by shutdowns and security problems last summer and Vattenfall drew criticism after a fire in a transformer station shut down the Kreummel power plant it operates east of Hamburg in June. The company last year shut down reactors at its Forsmark nuclear plant in Sweden for two months after a fault in the plant's back-up power system was discovered.
