A 24-year-old woman was sexually assaulted while she waited at a bus stop in Bow.
Police are now appealing for help in identifying a man they would like to speak to about the incident.
The attack happened on Wednesday, June 4 at about 1.30pm while the woman waited at a bus stop on Wick Lane.
The suspect is described as a white man in his forties who is of medium build with grey hair and is around 5ft 9 inches tall.
Anyone with information should contact DC Emma Jones, who is leading the investigation, on 020 3054 5120 or Crimestoppers anonymously on 0800 555 111, quoting reference 151791.