Gunned down: Sabrina Moss, 24, was shot dead while out celebrating her birthday with friends
Sabrina Moss, who had a four-year-old son, is believed to have been caught in the wrong place at the wrong time, a senior Police officer said.
Police were called after reports of gunshots on Kilburn High Road in north west London at around 4am.
Another 24-year-old woman is in hospital. Her injuries are not thought to be life-threatening.
Detective Chief Inspector John Sandlin of the Metropolitan Police said: 'Enquiries continue to establish the full circumstances of this tragic incident.
At this early stage, I believe the two women were innocent parties who were caught in the wrong place at the wrong time.'
Officers from Operation Trident - which investigates gang crime and shootings in London - are at the scene and the death is being investigated by detectives from the Homicide and Major Crime Command.