- Video shows the moment French police chased alleged gunman Karim Cheurfi
- Policeman and two other officers were shot by ISIS terrorist on Champs-Elysees
- One traffic officer died instantly with a shot to the head and another two injured
- Cheurfi himself was gunned down by nearby armed police not long afterwards
Dramatic footage has captured the moment French police chased and shot dead an ISIS gunman who had just murdered one of their colleagues in cold blood.
Champs-Elysees killer Karim Cheurfi was armed with a Kalashnikov when he mowed down a policeman and two other officers in a terror attack in Paris last night.
One traffic officer died instantly with a shot to the head, while the other two were hurt before Cheurfi himself was gunned down by nearby armed police. A ricocheting bullet fired by the terrorist also wounded a female foreign tourist passing by.
Armed police appear to engage with the terrorist as their colleagues lay injured on the floor
Dramatic footage has captured the moment French police chased and shot dead an ISIS gunman who had just murdered one of their colleagues in cold blood
The ISIS gunman, identified as Karim Cheurfi (pictured), who was jailed for 20 years for trying to kill officers in 2001, parked his Audi and opened fire after police stopped at a red light
Police officer appears to stand over the body of the ISIS terrorist after he was shot dead
Armed police are seen keeping guard with the body of the gunman on the floor in front of them
ISIS has claimed responsibility for the attack and named the attacker as 'Abu Yousif al-Belgiki', which translates to 'the Belgian' in Arabic.
It has since emerged that the homegrown fanatic, who officials confirmed was a French national despite his nickname, had also been released early from prison – where it is thought he was radicalised – having been jailed for 20 years in 2005 for trying to kill two policemen.
He was also detained in February after informants said he was 'seeking to obtain weapons to kill policemen'.
But the 39-year-old, who used the war name 'Abu Yousuf the Belgian', had to be released because anti-terror police did not have enough evidence to hold him.
At around 9pm local time last night Cheurfi parked up his silver Audi and opened fire after police stopped at a red light on the French capital's popular shopping district.
A pump action shotgun and knives were found in the Audi he was driving, which also contained his ID - confirming to detectives that he was known to security services for a number of recent offences and had been flagged as an 'extremist'.
A body is removed from the scene after a traffic officer was killed by an ISIS gunman in Paris
French police officers and forensic teams searched a vehicle which was close to the scene
An armed police officer hoists his weapon as they storm the streets of Paris late last night
Officers have been searching the home of the alleged shooter in east Paris and arrested three of his family members.
A French government spokesman said the ISIS gunman began firing against police using 'a weapon of war'.
Police have now launched a desperate manhunt for a second suspect, who travelled by train to France from Belgium.
The fatal incident unfolded as presidential candidates, including National Front party leader Marine Le Pen, debated on a TV show nearby before Sunday's election.
Armed police outside a shop in central Paris after an ISIS gunman killed a traffic officer
Police stood guard after they rushed to the scene in the centre of the capital following the incident which left frightened witnesses sprinting for their lives
A French police officer has been shot dead on the Champs Elysees in Paris (pictured) - just as presidential candidates took part in a TV debate nearby
Pictured is the scene of a restaurant in Paris when the gunman opened fire on the streets outside. Diners are seen cowering on the ground in fear