(AP)—Finland's safety agency has begun an investigation into a leak from a nickel mine that polluted nearby waters with levels of radiation three times what is considered safe.
The move was announced Wednesday following a government emergency session to discuss measures to deal with the pollution at the mine in sparsely populated eastern Finland.
Officials at the Talvivaara Mining Company have said that the discharge from waste water reservoirs discovered 10 days ago had been blocked and they expected no further leaks.
Radiation safety officials say some water samples near the mine contained 350 micrograms of radiation—more than three times the amount considered safe for drinking.
Talvivaara officials say they will review mining targets after operations were temporarily shut during the leak.
Explore further: Researchers develop new instrument to monitor atmospheric mercury