French prosecutors have charged* one of the "terrorist commandos of young women" arrested over a foiled attack near Notre Dame Cathedral in Paris, reports the BBC.
Ornella G, 29, was charged* with alleged involvement in a terrorist act and attempted murder.
Three other women are still being questioned by police, after a car packed with gas cylinders was found last Sunday close to the cathedral.
They are alleged to have been planning other "imminent and violent" attacks.
Paris prosecutor François Molins said on Friday that Ornella G's fingerprints were found inside the car. She was known to intelligence agents as someone who was considering going to Syria.
She was arrested in southern France on Tuesday with her boyfriend, who has since been released.
The three other women being questioned by police were arrested on Thursday with a man. Police say they were directed by so-called Islamic State.
One of them, identified as Sarah H, aged 23, had been engaged separately to two French jihadists, both now dead, who carried out attacks this year.
Read more of this report from the BBC.
*Editor's note: Under a change to the French legal system introduced in 1993, a magistrate can decide a suspect should be 'placed under investigation' (mise en examen), which is a status one step short of being charged (inculpé), if there is 'serious or concordant' evidence that they committed a crime. Some English-language media describe this status, peculiar to French criminal law, as that of being charged. In fact, it is only at the end of an investigation that a decision can be made to bring charges, in which case the accused is automatically sent for trial.