There is a risk of a radioactive leak after a blast at the southern French nuclear plant of Marcoule, media reports say. One person was killed and three were injured in the explosion, following a fire in a storage site for radioactive waste, Le Figaro newspaper said. It is a major site involved with the decommissioning of nuclear facilities. It produces MOX fuel, which recycles plutonium from nuclear weapons, but does not include any reactors. A spokesman for France\'s atomic energy commission said there had so far been no leak but a security perimeter had been set up because of the risk. The plant is located in the Gard department in Languedoc-Roussillon region, near France\'s Mediterranean coast.