PARIS -- A man wearing a fake explosives vest and wielding a butcher knife was shot to death by police outside a Paris police station Thursday, jolting an already anxious French capital with a new dose of fear as the nation grimly marked a year of terror that started with the newsroom massacre at the Charlie Hebdo satirical magazine.

The assailant -- who shouted, "Allahu akbar!" or "God is great!" as he waved the knife at officers -- was carrying a document with an emblem of the Islamic State group and "an unequivocal claim of responsibility in Arabic," the prosecutor's office said.

The extremist group claimed responsibility for the Jan. 7, 2015, attack at Charlie Hebdo and on a kosher grocery store three days later that killed 17 people. The Islamic State group also claimed the Nov. 13 attacks on Paris cafes, restaurants, a sports stadium and a music hall that killed 130 people.

Thursday's attempted attack shortly before noon in Paris' multi-ethnic Goutte d'Or neighborhood came almost one year to the minute after two Islamic extremists burst into the offices of Charlie Hebdo, killing 11 people.

Just moments earlier, President Francois Hollande had paid respects to fallen security forces -- three of whom were killed last year in terrorist violence -- saluting their valor in protecting "this way of life, the one that terrorists want to attack."

Scores of police descended Thursday on the northern neighborhood that was the site of the attempted attack, blocking it off to pedestrians and ordering shops to close.

Metro stations in the area, which is not far from the Montmartre district that is home to the Sacre Coeur Cathedral, were closed and buses halted, leaving scores of residents, including many elderly, to walk long distances only to find they could not get into their homes.

Authorities did not identify the suspect publicly, but a French security official said police were "working on the hypothesis" the assailant is a 20-year-old Moroccan who was involved in a minor 2013 robbery in the southern Var region.