A father-of-four is fighting for his life after being shot 'multiple times' while trying to break up a road rage row.
It is understood he pulled over his car and attempted to diffuse an argument between two motorists on Frances Street, Woolwich, south London on Thursday evening.
As the man, 32, got back into his vehicle, a number of shots were fired in his direction.
Police say they found the man in his parked car with gunshot wounds, while the shooter made off in a dark coloured saloon.
He was treated at the scene near the Royal Artillery Barracks and was airlifted to an east London hospital.
According to reports, the man was shot in the face and is said to have a one per cent chance of surviving.
Emergency services rushed to the scene near the Royal Artillery Barrack in Woolwich after reports of a shooting at around 8.10pm on Thursday, October 22
The man is understood to have pulled over his vehicle as he attempted to intervene in two motorists arguing in Frances Street, Woolwich, south London
Police are still hunting for the gunman following the shooting at around 8.10pm on Thursday, October 22.
The incident happened near the Royal Artillery Barracks in Woolwich, which accommodates up to 700 of the Royal Regiment men.
The base, which housed the Royal Artillery from 1776 until 2007, is scheduled for closure in 2028 with the Ministry of Defence deeming the site surplus to its requirements.
Detective Chief Inspector Wayne Jolley from the Met's Specialist Crime Command, who is leading the investigation, said: 'We recognise the shock and concern this will have caused the community and my thoughts are with the victims' loved ones at this difficult time.
'We are working around the clock to find those responsible, and we are asking for assistance from the public.
'Our enquiries are moving at pace, but I am keen to speak to anyone who was travelling in the area on Thursday night and might have any information or dashcam footage which could be relevant.'
Superintendent Charlene Pavitt, who is in charge of policing for the area, said: 'I know the community are rightly shocked by the incident, but I would like to assure you that my colleagues in Specialist Crime are working hard to find those responsible.
'While the investigation is in its early stages, we believe this to be an isolated incident and we have no evidence to suggest that the wider public is at risk.
'People living, working in and visiting the area will see extra officers on the streets carrying out reassurance patrols.'
Anyone with any information is asked to call police on 101 quoting CAD 6520/22OCT or to remain anonymous, Crimestoppers on 0800 555 111.