Police were called on Friday, 28 June at 11.41pm to reports of shots fired in Loxford Lane, Ilford.
Officers attended and found a 19-year-old-man suffering from a gunshot injury.
He was taken to an east London hospital, his injuries were not life threatening and he has since been discharged.
A short while later police were called to shots fired in High Road, Ilford.
No one was injured, however evidence was found that a firearm had been discharged.
Both incidents are being linked.
In particular officers are trying to identify a witness, they believe to be a cab driver, who was driving a light coloured Zafira, Tourer model 2012 – 2019.
Specifically the driver was stationary in Castle View Gardens, Ilford on the day of the shooting, between 11.12pm to 12am, with at least one other person waiting in the cab.
At some point two more males get into the cab, one of which was in possession of a bag which is suspected to have contained a firearm.
These two men are suspects for the two firearms incidents; both would have occurred while the Zafira was waiting.
The taxi then left the area and the taxi driver would probably not have known what had occurred.
Detective Constable Natalie Morris of SCN said: “We are looking for anyone with information to come forward, but in particular we would like to speak the driver of the Vauxhall Zafira.
“The driver was probably not aware of what had occurred, but he may have vital information and I would ask him to do the right thing and call police. I want to reassure anyone who contacts us that they will be fully supported.
“I appreciate that those who carried out the shootings are dangerous men, but we can only keep our communities safe by police and public working together.
“If you want to, you can contact Crimestoppers who will not ask your name and you can give your information and remain totally anonymous.”
Any witnesses or anyone with any information is asked to call police on 101 or contact via Twitter @MetCC. Please quote CAD9699/28Jun