The suspect is believed to have carried out two assaults in north and east London (credit: Met Police)
The 37-year-old woman became aware of a man, who appeared to be following her at around 6.15pm on Saturday, 11 April, when she was making her way home from work, via Shadwell DLR Station.
The victim boarded a train at the station, as did the suspect.
Concerned, the woman got off the train at Canning Town before quickly re-boarding to try and lose the man but noticed he had mirrored her actions.
When the woman got off the train at Royal Victoria DLR Station, the suspect was still following.
As a result, the victim asked two men she did not know to walk with her because she feared she was being followed. The suspect continued to follow her.
The men walked with her part of the way before their journeys took them in different directions.
As the doctor walked along Butchers Road, she decided to call police but while she was still on the phone, the suspect approached her from behind and pushed her to the ground.
As well as images, police have released audio from the phone call, which some people may find distressing.
Police have released audio from the call made from the victim to the police
He then left the scene, in the direction of Royal Victoria DLR Station.
The victim was taken to hospital with cuts, bruising, and injuries to her mouth, which included a broken tooth.
The suspect is described as a black man and aged around 20-years-old.
Detective Constable Alister Kim, from North East CID, said: “I am particularly keen to speak with the two men who kindly walked for a time with the victim when she was being followed by the suspect.
“They may, unknowingly have information that could assist my investigation and I urge them to get in touch.”
At this stage there have been no arrests and enquiries are ongoing.
A separate assault on a woman taking a Route 149 bus in the Edmonton Green area, also in April, is believed to have been carried out by the same suspect.
At the time of both attacks, the suspect was wearing grey jogging bottoms, a grey hooded top under a dark jacket and a dark cap.
DC Kim, added: “Having studied the evidence from both incidents I believe that both victims were attacked by the same suspect.
“There is nothing to suggest any motive or reason for the victims being targeted. Both women were simply going about their daily business.
“The random nature of both assaults makes it imperative that the man in the images is identified without delay. If you know who he is please contact police immediately.”
Anyone who might have information that could assist police is asked to call 101 reference CAD 6121/17 Apr, Tweet @MetCC or remain 100% anonymous by calling the independent charity Crimestoppers on 0800 555 111
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