As Many as 10 Hooded Gunmen Open Fire In Marseille, Likely Drug Related

This is a drug gang related incident. 

More from FDS – Google Translate

Nearly a hundred policemen trying to stop the shooting and detain individuals who fire this morning in the city of Castellane. The IFNU was dispatched, and the judicial police. Public safety personnel were ordered to stay outside the city. Only plainclothes police officers went inside. This morning around 9:00, ten young people dressed in black and wearing balaclavas carrying flak circulating scooter jackets, armed with machine guns like AK-47. According to preliminary information gathered from the police, they would try to take a drug point in the city of Castellane to a competing group

this  is franceMarseille, with a 40% Muslim population, is considered the most dangerous city in Europe.