A teenager was robbed of his laptop by four men in Highbury Road on Monday (April 8).
The 18-year-old was getting into his car at 12.10am when another car pulled up alongside and four men got out.
One of the men punched the victim in the face and took the laptop, then got back into the white Hyundai-type car and drove away.
The offenders are described as slim black men, aged 15-22 years old, all wearing baseball caps.
Call Det Con Mandy Godfree in confidence on 01582 394443 with information.