A polce appeal follows an attempted knifepoint sex attack in Forest Gate.
A 44-year-old woman was approached at a bus stop in Dames Road.
A man on the opposite side of the road exposed himself before walking towards her and producing a knife.
The woman fled and noticed the suspect running towards Anna Neagle Close.
He is described as white or Asian and about 5ft 8ins. He was wearing a blue tracksuit and knee-length jacket, a blue cap and a multi-coloured scarf.
If you have any information about the incident at 6am on Sunday, May 8 you are urged to contact Newham Violent Crime Unit on (020) 7275 5853.
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