Armed police have killed a suspect who shot dead three people in a series of attacks in southern France, reports BBC News.
The heavily armed gunman hijacked a car and then took hostages at a supermarket in the town of Trèbes.
The man, named as 25-year-old Redouane Lakdim, said he was fighting on behalf of the Islamic State group.
He is believed to have killed and wounded his victims in three separate incidents which began in Carcassonne, 15 minutes' drive from Trèbes.
Later, President Emmanuel Macron said 16 people had been wounded in the attack.
Among them is a gendarme who swapped places with a hostage. Mr Macron said the man, who has been hailed for his heroism, was fighting for his life in hospital.
He was shot several times, Paris prosecutor François Molins told reporters. One person has been arrested in connection with the shootings, he added.
The suspect is said to have been demanding the release of Salah Abdeslam, the most important surviving suspect in the November 13th 2015 attacks in Paris, which killed 130 people.
The attacker began his spree of attacks on Friday morning in Carcassonne, where he first hijacked a car, killing one passenger - whose body was later found hidden in a bush - and wounding the driver.
He then shot and wounded a policeman who was jogging with colleagues.
The suspect is then believed to have driven a few kilometres to the small town of Trèbes, where he charged into the Super-U supermarket, shouting, "I am a soldier of Daesh [Islamic State]" and took hostages.
Carole, who was shopping at the supermarket, said people hid in a cold room.
"A man shouted and fired several times. I saw a cold room door, I asked people to come and take shelter," she told France Info radio.
"There were ten of us, and we stayed an hour. There were more gunshots and we went out the emergency back door."
Interior minister Gérard Collomb told reporters that police officers managed to get some people out, but that the gunman held one woman back as a human shield.
It was at this point, he said, that the 45-year-old gendarme volunteered to swap himself for her - and left his mobile phone on a table with an open line so police could monitor the situation,
When police heard gunshots, an elite Swat team stormed the supermarket. The gunman was killed but the gendarme was seriously wounded, and another officer was also hurt.
Mr Collomb hailed the "heroism and courage" of the gendarme, a lieutenant-colonel.