A 13-year-old has had his mobile phone stolen after being pushed against a bin and punched.

It happened at Camp Grove, off Plumstead Road, at around 4pm on June 16, when the victim was approached by a male who demanded he hand over his mobile phone.

The teenager refused and was pushed against a nearby bin and punched in the back before the offender made off with his blue Samsung Galaxy S3 Mini.

The offender is described as 16-18 years old, 5ft 7in to 5ft 8in tall, of slim build, with short black hair. He wore light blue jeans, white trainers and carried a black drawstring bag.

Contact Det Con Richard Long on 101.