A woman was attacked on the Tube after asking a couple to stop having sex in the carriage, police say.
The commuters were romping in the southbound Northern line train when a woman came over and interrupted them.
After asking the pair to stop what they were doing as the train reached Kennington station, the man became “aggressive” police say.
According to officers he spat in the woman’s face and started pushing her, shortly before 1am on January 14.
Other passengers are then thought to have intervened to break up the violence.
Investigating officer DC Suleman Yazdani, from British Transport Police, said: “This is highly inappropriate behaviour.
"The woman was simply asking this couple to stop, there was no need for aggression.
“If you were on that train or saw anybody acting suspiciously I would urge you to contact us as soon as possible.
"Any information, no matter how small, could be vital to our investigation.”
Anyone information should contact BTP by sending a text to 61016 or by calling 0800 40 50 40 quoting reference 13 of 14/01/2017. Alternatively, contact Crimestoppers anonymously on 0800 555 111.
