Man opens fire at children's birthday party in Bromley
A man was shot in the leg at a 10-year-old's birthday party, leaving children at the event "traumatised", police said.
The 22-year-old was shot in front of his seven-year-old stepson in Bromley, south-east London.
Scotland Yard detectives want to trace Alfie Gannon, 20, in connection with the shooting.
No children were hurt in the incident, which followed a row between the gunman and a member of the victim's family.
Police said the attacker was asked to leave the party, at a house in Ravenscar Road, and made threats to kill a 21-year-old man as he left the address.
He returned more than five hours later with a semi-automatic pistol and shot the man's brother, a force spokesman said.
The victim made a full recovery after the shooting, which happened on 18 May.
Det Con Paul Buckley said: "This was a shocking incident at a child's birthday party.
"Understandably both the children and guests at the party where extremely traumatised by the senseless actions of the suspect."
He asked members of the public not to approach Alfie Gannon, who has links to the West Yorkshire area, and to call 999 if they see him.
Detectives from the Met's Trident Gang Command Unit are investigating the shooting.
Mr Buckley added: "Trident are today releasing an image of a man wanted in connection with the shooting in the hope that he himself will come forward, or those who may know his whereabouts contact the police.
"I would like to reassure any potential witnesses who may be worried about making contact with police that Trident has extensive expertise in protecting witnesses and there are a range of measures that can be taken to protect you."