France, May 12 -- The man, a 27-year-old from Tunisia, is suspected of "plotting a violent action inspired by jihadism", according to the anti-terror prosecutors office.

He was arrested last week, on 7 May, after a preliminary investigation was opened the day before into "terrorist criminal conspiracy".

He was placed in pre-trial detention on Monday.

Citing a source familiar with the investigation, AFP news agency reports that the suspect had been planning to attack a Paris museum and members of the Jewish community, though with no specific target

Le Monde and Le Parisien reported that he had considered the Louvre museum as a possible target, as well as the Jewish community in Paris' 16th arrondissement.

Security questions raised aft...