A man suspected of killing three people and holding shoppers in a French supermarket hostage has been named as Redouane Lakdim.

Police stormed the shop in Trèbes, southern France, and killed the suspect. Officials believe he hijacked a car in Carcassonne at around 10am and killed one of the passengers.

He is then thought to have fired on a group of policemen who were jogging, wounding one in the shoulder, before driving to a supermarket three miles from Carcassonne and holding around 50 customers hostage.

He killed two of them and injured 16 more before police stormed the shop and shot him dead.

Those injured include a police officer who was swapped for a civilian hostage and was critically ill on Friday evening.

What do we know about the gunman?

The 26-year-old was of Moroccan descent and lived with his parents and several sisters in an apartment in Carcassonne raided on Friday afternoon, Le Parisien reported.

A neighbour told the newspaper he was ”calm” and “nice” , saying he regularly attended his local mosque. Lakdim dropped his sister off at school on the morning of the massacre, they added.

The first image of Radouane Lakdim, who authorities have named as the 26-year-old attacker (Handout)

The French President, Emmanuel Macron, said detectives will also try to find out exactly how and when Lakdim was radicalised.

He was known to the police for petty drug dealing, but was on a “watchlist” of suspected extremists and had been under surveillance.

Trebes siege: France supermarket shooting Show all 14 1 /14 Trebes siege: France supermarket shooting Trebes siege: France supermarket shooting Rescue forces and police officers at a supermarket after a hostage situation in Trebes, Reuters Trebes siege: France supermarket shooting Forensic police investigate after the gendarme's assault on the Super U supermarket. EPA Trebes siege: France supermarket shooting Police are seen at the scene of a hostage situation in a supermarket in Trebes. Reuters Trebes siege: France supermarket shooting A view of the Super U supermarket where a gunman reportedly claimed allegiance to the Islamic State and is holding hostages. EPA Trebes siege: France supermarket shooting Emmanuel Macron is informed by his security advisor about the hostage situation in Trebes during the joint press conference with Angela Merkel at the summit of European Union leaders. AFP/Getty Trebes siege: France supermarket shooting A gendarmerie helicopter flies over the Super U supermarket. EPA Trebes siege: France supermarket shooting French gendarmes and police establish a security perimeter around the Super U supermarket. EPA Trebes siege: France supermarket shooting Police officers secure evidence. EPA Trebes siege: France supermarket shooting French gendarmes block the access to Trebes. AFP/Getty Images Trebes siege: France supermarket shooting Police attend the incident in Trebes. La Depeche Du Midi via AP Trebes siege: France supermarket shooting French police and firefighters secure the entrance of Trebes. AP Trebes siege: France supermarket shooting A genera; view of The Super U shop in Trèbes, southern France, where hostages were reportedly taken by a gunman claiming allegiance to Isis. Google Street View Trebes siege: France supermarket shooting Police block a road near the scene. Reuters Trebes siege: France supermarket shooting French gendarmes block the access to Trebes. AFP/Getty

Interior minister Gerard Collomb described him as a “radicalised petty criminal and small-time drug dealer”.