A Swedish nuclear watchdog on July 8 decided that a local nuclear power plant should be placed under special supervision, citing a spate of incidents at the plant. The move was a new setback for state-owned Swedish utility giant Vattenfall that is majority owner of the Ringhals plant that operates four reactors. The Swedish Radiation Safety Authority said efforts by the operators of the Ringhals plant since 2005 have not been sufficient and had registered at least “two serious” incidents. “The agency has on several occasions pointed out deficiencies that have been followed by measures from Ringhals, but the problems still remain,” said Leif Karlsson of the Swedish Radiation Safety Authority’s department for reactor safety. The nuclear watchdog cited weaknesses in how routines and instructions were adhered to. The shortcomings were however not sufficient to prevent the restart of the reactors at the Ringhals plant, and the operator was to report back to the watchdog latest by November.