Police are appealing for witnesses to an assault on a 73-year-old man who was walking his dogs along Seven Sisters Road.
The victim was pushed to the ground by a man, who drove away in a red car. The pensioner was shaken but not hurt.
The suspect drove away in a red car. The attack took place at about 6.20am on June 26.
A 31-year-old man, from Eastbourne, was arrested on suspicion of assault. He was questioned and bailed until Sunday July 13.
Anyone who witnessed the incident is asked to call the police on 101 or email firstname.lastname@example.org quoting serial 212 of 26/6. Alternatively, call the independent charity Crimestoppers anonymously on 0800 555 111.