A French prosecutor said on Sunday that a man arrested by police last week after raiding an apartment near Paris was directly linked to an organized organization.
At the raid, police found components that could be used to make explosives.
Police discovered an explosives cache on September 6 in Villevieve, south of Paris, and found the TATB, often used by suicide bombers.
"The seized material is acetone peroxide," a source in the French police said.
The manufacture of "acetone peroxide" explosives, a type of highly explosive material, has been used by militants in a number of attacks by a staunch organization in Europe in recent years.