Updated

A 14-year-old French girl has been placed under investigation for allegedly planning to carry out jihad, the third in a group of teenage girls caught before they left home.

The Paris prosecutor's office said the girl from Quimper, in Brittany, risks up to five years in a juvenile prison if the investigation leads to an indictment and conviction.

The girl, not named, was in contact with two other teens, aged 15 and 17, all allegedly planning together to travel abroad to join a jihadi group — even though they live in three different regions of France.

The prosecutor's office said the girls corresponded via social networks, but wouldn't give details.

French judicial officials are investigating 329 people who left France to carry out jihad, mainly in Syria, or wanted to.