A teenager thought to be in Erith is wanted after four police officers were assaulted in Kent.
Taiwo Oladunjoye, 18, is also believed to be in breach of a court order.
The teenager is the latest suspect police are trying to locate with the help of the public.
Detective Superintendent Hill said: “I know some people are unwilling to pass on information such as this.
“However, I would ask people to consider how they would feel if it was their family member, loved one or friend that had been seriously injured or the victim of crime.
He added: “If you are one of the individuals we wish to speak to, I would suggest handing yourself in at the nearest police station sooner rather than later.
“Knocking on our door is infinitely better than us knocking on yours.”
We will update this article once we have more information on the alleged assault.
If you have information on Oladunjoye or know his whereabouts, you are asked to call police on 0800 555 111.