Story highlights

Woman's fingerprints were found in car left near Notre Dame Cathedral in Paris

In separate Paris case, a minor was arrested for planning a terror attack with knives

Paris CNN  — 

French authorities have charged a woman in relation to an alleged ISIS plot to attack this city’s famous Notre Dame Cathedral last week, the Paris prosecutor’s office said.

The woman, whose name was given as Ornella G., was charged Saturday night with “terrorist criminal association to commit crimes against people” and “attempted assassinations as an organized gang in connection with a terrorist enterprise,” the office said.

The prosecutor, Francois Molins, whose office handles terrorism investigations, said Friday that the woman’s fingerprints were found last Sunday in a car containing a half-dozen gas cylinders and left parked in front of Notre Dame, in the heart of Paris. Five of the cylinders were reportedly full. No detonator or firing device was found.

Police appear outside a building Thursday in Boussy-Saint-Antoine  after the arrest of female suspects.

The woman was on France’s “S” list of radicalized individuals believed to pose a threat to national security and was known to have sought to travel to Syria, Molins said.

Arrested in southern France

Ornella G. was arrested on Tuesday near the city of Orange, in southern France, along with a companion who has since been released, the prosecutor’s office told CNN.

Authorities arrested three additional women – ages 19, 23 and 39 – near Paris Thursday in relation to the Notre Dame plot. French Interior Minister Bernard Cazeneuve said the three women were radicalized and likely had been planning an “imminent and violent” attack.

The women were arrested Thursday in connection with gas cylinders found inside a car left in front of Notre Dame Cathedral in Paris. One of the women had a letter in her purse swearing allegiance to ISIS, Molins said.

In the letter, she said she was answering the call of Abu Mohammad al-Adnani, according to Molins. Adnani, one of the highest-ranking figures in ISIS, was killed in late August.

Adnani, one of the highest-ranking figures in ISIS, was killed in late August.

A police officer suffered a knife wound during the arrest. In total, three women were detained.

The prosecutor said one of the terror cell members, identified as Sarah H., was supposed to marry Larossi Abballa, the man who killed two police officers in Magnanville, France, in June.

After police shot Abballa, she then was supposed to marry Adel Kermiche, who killed a priest in Saint-Etienne-du-Rouvray, France, in July. Kermiche was also killed.

Minor arrested in separate terror plot

France has been under a state of emergency since the Paris terror attacks in November, and authorities have struggled to monitor thousands of domestic radicals on their radar.

In a case unconnected to the Notre Dame plot, French authorities arrested a minor on Saturday on suspicion of preparing an imminent terror attack involving knives and bladed weapons, a source who has been briefed on the case told CNN.

The minor was arrested in the 12th district of Paris and was being questioned by the General Directorate of Internal Security, the source said.

The priest’s killing followed a string of violent attacks across Europe, some claimed by ISIS, including the Bastille Day attack in Nice.

Journalist Sandrine Amiel reported from Paris, Margot Haddad reported from London and Tim Hume wrote from London. CNN’s Claudia Rebaza contributed to this report.