PARIS (AFP) - France on Saturday (Jan 9) paid homage to four Jewish hostages killed at a kosher supermarket in Paris a year after a spate of extremist attacks that began with a deadly assault on the Charlie Hebdo weekly.

Tributes were also paid to Ms Clarissa Jean-Philippe, a young policewoman who was also killed by the gunman who went on to carry out the supermarket siege, with President Francois Hollande unveiling a plaque in her honour in the Paris suburb of Montrouge where she died.

A total of 17 people were killed in the January 2015 attacks which rocked France and touched off a wave of Islamist violence that reached a head in November when a group of gunmen and suicide bombers unleashed mayhem in Paris, killing 130.

The 26-year-old policewoman was killed on Jan 8 by Amedy Coulibaly, the gunman who went on to attack the Hyper Cacher supermarket in east Paris. Three shoppers and an employee were killed by Coulibaly before he was killed in a police raid.

A gathering to remember the victims will be held outside the supermarket after sundown on Saturday organised by the Jewish umbrella group Crif.

"Despite continuing traumatic feelings, life has returned to normal with a renewed sense of fraternity," said France's grand rabbi Haim Korsia.