Nine people will remain in custody for additional 48 hours. French authorities are allowing prolonged interrogations under the countries anti-terrorist laws.
Twelve people were arrested on Friday in the southern suburbs of Paris following recent brutal attacks in and around the French capital, including an assault on Charlie Hebdo, a satirical weekly. They are suspected of providing "logistical support" for the shootings, according to Reuters.
Charlie Hebdo massacre, which took place on January 7, was the first in a series of terrorist attacks in Paris. On January 8, a female police officer was shot dead by a gunman in the Paris suburb of Montrouge. The following day, the suspected gunman killed four hostages in a kosher supermarket.
Dozens of people were arrested in recent days in anti-terror raids across Europe.
