Blast at French nuclear site, no leak reported

MARSEILLE, France - An explosion in a furnace at the Marcoule nuclear waste treatment site in southern France on Monday killed one person, but there was no leak of radioactive material outside the site, officials said.

Four people were injured, one with serious burns, in the blast at the Centraco site, owned by French power utility EDF and adjacent to the Marcoule nuclear research center. The Centraco site does not house any nuclear reactors.

Fatalities in accidents at active nuclear sites in France are extremely rare, although deaths occasionally occur during plant construction.