France, Nov. 8 -- French prosecutors have widened an investigation linked to Paris attacks convict Salah Abdeslam, as fresh anti-terror arrests raise concern ahead of the 10th anniversary of the 2015 massacres.

Less than a week before France commemorates the 10th anniversary of the 2015 Paris and Saint-Denis attacks, anti-terror investigators have opened a new inquiry linked to Salah Abdeslam, the sole surviving member of the commandos behind those atrocities.

Three people, including Abdeslam's partner, are currently in custody.

Abdeslam, who is serving a life sentence without parole at the high-security prison of Vendin-le-Vieil in northern France, was briefly placed in police custody earlier this week before being released.

The new ...