Investigations are continuing into the death of a man, who was shot by police during a "pre-planned" operation.
The body and the car have been removed from the scene
Police marksmen fired a number of shots at a car which was stopped in north-west London on Saturday night.
One of the men, thought to be in his 20s, travelling in the car was killed. Police said the dead man had been seen holding a firearm.
A Metropolitan policeman has been removed from firearm duties. This is normal following such incidents.
The officer was among 25 taking part in the operation in Hale Lane, Edgware, at 2000 BST on Saturday.
After a car was stopped, police fired "a number of shots" and a passenger was killed, said independent police investigators.
Two other people in the car were arrested on firearms offences and three weapons were recovered.
A Scotland Yard spokeswoman said of the moved officer: "He has been removed from arms duties and moved to another role."
An investigation by the Independent Police Complaints Commission (IPCC) began soon after the fatal shooting.
In a statement, the IPCC said: "Police fired a number of shots and the man was hit when in the vehicle.
"Two other occupants of the car were arrested on suspicion of possession of a firearm and are in police custody."
The victim's body was taken away in a private ambulance
The IPCC described the operation as "pre-planned by the Metropolitan Police's Specialist Crime Directorate and SO19", which is a specialist firearms unit.
The identity of the victim has not been revealed while his relatives are informed.
The scene of the shooting was sealed off on Sunday and obscured with large plastic groundsheets. The body and the car were removed from the scene.