Paris closure plans unveiled ahead of summer Olympics

A total of 326,000 spectators are expected to witness the ceremony with tickets, while up to 200,000 others will watch from homes overlooking the Seine or from residential river boats.

The apartments overlooking the river have been highlighted as a major security risk, with France on its highest possible terror warning level following an attack claimed by Islamic State in Moscow last month.

The proposed solution is the online registration system that will require people wanting to access the anti-terror zone around the river to enter their personal details into a government-run website.

Those approved for access - residents, tourists with bookings, and workers such as waiters, locksmiths or nurses - will then receive a QR code that must be presented to the police in order to access the zone.

"We will prevent anyone who is suspected of being radicalised for example of entering in this perimeter," Darmanin added.

The registration website will be live from May 10, Darmanin said.