The explosion of a transformer caused the engine room to flood at the SAYANO-SHUSHENSKAYA power station in southern Siberia, the Investigative Committee of the federal prosecutors office said.

The accident caused an oil spill, however, and the slick was floating downriver, the ministry said.

Two of the plant’s 10 turbines in the engine room were destroyed, and a third was seriously damaged, said Vasily Zubakin, acting chief executive of the plant’s owner, RusHydrop.

http://news.yahoo.com/s/ap/20090817/ap_on_re_eu/eu_russia_power_plant