An e-fit image of a man wanted in connection with an attempted armed robbery has been released by detectives in east London.
A shot was fired at a woman sitting in her car in Ivy Road, Canning Town, after she collected her company's takings for the day.
Two men approached the car and banged on the doors before firing a shotgun at close range through the window.
The 22-year-old woman escaped without serious injury.
The woman had been returning to her car at about 1730 GMT on Monday when she noticed about 20 men "hanging around" the area.
As she got into her car two of the men approached, one to the driver's door and the other to the passenger's side.
The woman managed to lock the car but the attackers banged on the doors before one fired a shotgun.
The group then ran off down a nearby alleyway.
The victim was taken to an east London hospital with a wound to the back of the head. She has since been discharged.
The suspect who fired the gun is described as black and aged between 18 and 20. He wore a red and white scarf and a black hooded top.
Police described the second as black and aged between 18 and 20. He had short afro-style hair and wore a dark blue track suit with light blue stripes.
On Friday detectives were speaking to people in the area, handing out leaflets and putting up appeal posters.
Det Sgt Steve Desmond, from the Metropolitan Police Trident team, said: "This is a very serious incident, where an innocent woman could have so easily lost her life over such a small amount of money.
"She was very fortunate not to have been injured more seriously."