A major police operation was launched this Monday morning in the Castellane district of Marseille. At 10 a.m., several dozen police officers invaded the city, emblematic of the drug trafficking which is undermining France's second city.

Supported by two CRS companies and dog teams, they inspect the cellars and common areas used by the narcocaids. One of the last shocks dates back to December 25, when Nordine Achouri, alias “Nono”, local drug baron, was shot dead in the street.