A man exposed himself in front of passengers during rush hour at a London Underground station.
Detectives are looking for a man who targeted commuters at Wimbledon Tube station last month.
He exposed himself in front of several unassuming passengers at about 4.40pm on Saturday, September 9.
One of the victims is a 12-year-old girl, British Transport Police said.
Now detectives have released CCTV images of a man in connection with the investigation.
British Transport Police said: ‘At around 4.40pm on 9 September at Wimbledon Underground Station, a man exposed himself in front of a number of people, including a 12-year-old girl.
‘Officers believe the man in the images could have information that may assist their enquiries.’
Anyone who recognises him is asked to contact BTP by texting 61016 or calling 0800 40 50 40, using the reference 487 of 9 September. Anonymous information can be provided to Crimestoppers charity.
Crime incidents on the London Underground have increased slightly since last year.
The Tube network saw 12,931 incidents between January and June this year, compared with 12,419 offences in the same period last year, the latest TfL crime figures show.
Top five Tube stations for crime incidents
A total of 5,774 crimes were committed at a station in the first six months of this year.
The five most affected stations are all busy interchanges used by commuters and visitors.
Meanwhile, sexual crime decreased slightly – there were 417 reported sexual offences on the Tube in the first six months of this year, compared with 424 in the same period last year.
Most sexual crimes were carried out during the peak evening commute between 4pm and 8pm.
Around 61% of the sexual offences this year were committed on a train (257 cases).
A total of 139 offences for causing intentional harassment, alarm or distress on account of sex were recorded under the new Public Order powers.
There was a 43.5% increase in hate crime incidents compared with the first six months of last year, with 858 incidents recorded so far this year compared with 598 last year.
London Underground staff were targeted in 134 hate crime incidents, TfL said.
Meanwhile, the most common crime on the Tube remains theft, with 5,400 incidents recorded so far this year.
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