Police investigating the murder of a 14-year-old boy in Newham continue to appeal for information and witnesses.
A murder investigation was launched after Corey Junior Davis died in hospital on Tuesday, 5 September after being shot in Moore Walk, E7 the previous day.
Detective Chief Inspector Dave Whellams of the Homicide and Major Crime Command leads the investigation.
He said: "We are working tirelessly to work through the evidence and piece together the events which led to Corey's murder.
"I am specifically appealing for information about a large, light coloured 4 x 4 type vehicle that was seen leaving the scene immediately after the shooting. Did you see this vehicle in and around the area of Moore Walk shortly after 3pm on Monday, 4 September? If you did, please contact the incident room - any information could prove to be vital to progressing this investigation.
"I would also ask any members of the public who have footage or images of the incident or the events surrounding the incident to retain this footage and contact police."
The investigation was launched after police were called to Moore Walk, E7 on Monday, 4 September at 15:10hrs following reports that two people had been shot.
Officers attended and found two teenage boys, aged 14 and 17, with gunshot injuries.
They were both taken to an east London hospital where the 14-year-old sadly died at 22:01hrs on Tuesday, 5 September.
He has been named by detectives as Corey Junior Davis, 14 (29.12.02), from Forest Gate.
A post-mortem examination will be held in due course.
Specially trained family liaison officers are supporting Corey's family.
The second victim - aged 17 - remains in hospital in a stable condition with potentially life changing injuries.
There have been no arrests at this stage.
DCI Whellams added: "This is a very tragic incident - a teenage boy's life has been taken in an extreme act of violence leaving his family utterly devastated.
"We are pursuing all lines of enquiry to catch the person responsible for Corey's murder and work continues to establish the motive behind the shooting.
"Our thoughts are with Corey's family at this very difficult time."
Anyone with information or who witnessed the shooting can contact officers on the dedicated incident room number 020 8345 3775, on 101 or make contact via Twitter @MetCC.
To give information anonymously contact Crimestoppers on 0800 555 111 or online at crimestoppers-uk.org.