(updated: 17:52 28.02.2017) 036511 BFMTV.
The detention was held in the morning in the Department of Oise.
According to the channel, the French secret service had followed the girl since last summer. It is reported that she would liaise with Rashid Qasim, a Frenchman who went to Syria to fight on the side of the militants. Qasim was involved in a number of terrorist attacks in France, including the murder of a priest in the Church of Saint-étienne-du-Rouvray (near Rouen).