According to reports, incidents took place in two southeast services on the night of March 18.
Around 9.30 pm, a man was on the train from the London bridge to Woolwich Arsenal, where he was attacked.
Later, on the same day, around 11 PM, an old woman was on a train from the London bridge to Eash when a girl approached and assaulted her.
Another woman intervention and the girl also tried to attack her, according to the British transport police.
It is a believer that the same group of adolescents participated in both incidents.
Officers believe that girls in these images can have information that could help with their research.
Any person who recognizes them is asked to communicate with the British transport police sending text messages 61016 or calling 0800 40 50 40, citing reference 770 or March 18.
Alternatively, you can communicate with Crimeppers anonymously at 0800 555 111.
