Keyword: Notre Dame
Woman, 29, investigated over involvement in a terrorist act and attempted murder while three other women are still being questioned by police.
Paris prosecutor François Molins, who said a terror cell had been dismantled, said it showed Islamic State 'wants to create female fighters'.
French president François Hollande said a terror cell had been shut down and an attack 'foiled' after three women were arrested.
Police office stabbed during arrest of the three women who were described as 'fanatics' and 'radicalised' by French interior minister.
Owner of the Peugeot 607 left near cathedral has been arrested and is on watchlist of people suspected of religious radicalism, an official said.
Members of the group Femen had staged anti-Pope protest at famous French cathedral and been accused of degrading a place of worship.
Militant's torso carried the message 'May fascism rest in hell' in the stunt one day after a far-right historian shot himself dead at the cathedral's altar.