Detectives investigating the attempted rape of a 13-year old schoolgirl have released a CCTV image of a man they want to speak to in connection with the incident.
The image is captured at Drayton Park Railway Station in Drayton Park, north London before the young victim was attacked.
An E-fit of the suspect has previously been released, in the hope that someone will recognise the suspect and put his name forward to police.
Officers from the Metropolitan Police's Sexual Offences, Exploitation and Child Abuse Command launched an investigation on Wednesday, June 8 after a man approached the girl at about 8.20am and placed his hand over her mouth.
The suspect forced her into Coach House Lane, Highbury, where he assaulted her before a member of the public interrupted and confronted him, causing him to leave the scene.
The suspect then approached a teenage boy, who was riding a bike and took the cycle from him.
He rode it a short distance along Highbury Hill before abandoning the bike and making off on foot.
Police attended the scene and conducted a search, however neither the suspect nor the teenage boy witness could be found.
Despite numerous enquires neither the suspect nor the teenager have been identified.
Detective Constable Ben Lucas, of the Sexual Offences, Exploitation and Child Abuse Command, said: "I would again like to thank all the witnesses who have come forward so far and helped progress the investigation.
"We remain dedicated to identifying and arresting the suspect in the crime that has left a 13-year old girl and her family traumatised.
"I am very keen to identify the man in the CCTV still and urge the public to look carefully at the image and the previously released E-fit, and call the police as soon as possible if they recognise him."
The suspect is described as a white man, about 6ft tall and of muscular build. He had black and grey hair.
Police are asking anyone with information about either the suspect or the teenager on the bike to call 101 or to remain anonymous, call Crimestoppers on 0800 555 111.