Two passengers were brutally assaulted and dragged onto the floor of a Central Line train after being approached by a pair of women.
The female victims were assaulted while on board the Tube towards Leytonstone Underground station on June 5 around 7.40pm.
They had been confronted by two other women, who went on to become abusive and aggressive, according to British Transport Police.
One of the women was punched several times in the face before she was pulled to floor by her hair.
Whilst on the floor the victim was kicked and spat at. When the other woman tried to intervene and help her friend, she was also punched in the head.
Officers believe they may have information which could help their investigation.
If you recognise them, or have any information, please contact BTP by texting 61016 or calling 0800 40 50 40 quoting reference number 558 of 05/06/21.
Alternatively, you can call Crimestoppers anonymously on 0800 555 111.