Police are searching for a man wanted in connection with a shoorting at a ten year old girl's birthday in Bromley.
Detectives were called to the children's party on Ravenscar Road on Saturday after an argument turned violent.
A man became aggressive with a 21 year old and later shot him in his leg.
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The terror attack carried out by Khalid Masood at Westminster that left four people dead lasted less than two minutes say police.
Two knives were found at the scene in Islington, North London, and the suspects fled on foot before being arrested.
The family of the police officer who was murdered in the Westminster attack have thanked those who were with him 'in his last moments'.