“Many terror attacks have been prevented in France, five, including the one that, fortunately, did not happen a few days ago in Villejuif [a suburb of Paris],” Valls told the radio station France Inter.
On Wednesday, French President Francois Hollande announced that the terror alert in the French capital is still at its highest level.
Earlier in the day, French Interior Minister said security services foiled an imminent Islamist attack on French churches on Sunday after the suspect, a French-Algerian man, accidentally shot himself and called an ambulance.
France was forced to step up security following a string of terrorist attacks that began in Paris on January 7, when two gunmen broke into the editorial office of the Charlie Hebdo magazine, killing 12 people and injuring 11 others.
On January 8, a terrorist who reportedly had links with the Charlie Hebdo attackers shot dead a female French police officer in the Paris suburb of Montrouge. The next day, the same gunman killed four Jewish hostages in a kosher supermarket.