Explosion in Nuclear Plant in France

In France,today was an explosion at the Marcoule nuclear site. So far, no track of radioactivity, according to authorities. One person died in the explosion and four was seriously injured.
With the explosion of a furnace for radioactive waste at the site of a nuclear facility in France is one man was killed and four people were seriously injured according to the French Nuclear Safety  authorities.According to the French Nuclear Safety authorities was until now not a radioactive radiation detected, but the nuclear regulatory authority can not rule out  a possible radiation  in the next hours