Police are continuing to search for a gunman who shot two teenagers in a packed fast-food restaurant.
The shooting happened inside the McDonald's restaurant
The gunman opened fire on the youths, both aged 17, at McDonald's in Brixton, south London, on Thursday evening, in front of families and schoolchildren.
One teenager was shot in the chest and the other was hit in the arm. Police said both are "making good recoveries".
The shooting has sparked calls to look at the underlying problems behind gangs and gun crime in London.
The inquiry is being handled by officers from Operation Trident, which investigates gun crime in London's black community.
Cindy Butts, a member of the Metropolitan Police Authority, said: "There are a whole range of reasons why we have a gun problem here.
"It's not just about policing. In fact, gun crime has actually fallen this year.
"And that's to the credit of the police, Operation Trident and the fact we have communities now willing to stand up and say: 'Look - we don't want this here'."
Police said the gunman involved in the Brixton shooting, described as black and about 6ft 1in tall, may have fled on a bicycle.
Scotland Yard said the teenager shot in the arm had been treated in hospital and was discharged later on Thursday, while the other youth was described as stable and making a good recovery in an undisclosed hospital.
Det Ch Insp Andy Shrives, who is heading the investigation, has said the McDonald's was "very, very busy".
He added: "We believe after the shooting he came out of the doors and turned left and ran up Brixton Hill."
Police have said there is no evidence to suggest it was gang-related.