Officers from the MPS Roads and Transport Policing Command have arrested a female today (9 November) on suspicion of ABH following an attack on an elderly lady on a route 166 bus in Croydon.
The 14 year-old female has been taken to a south London police station where she remains in custody.
Officers have also identified the second female involved in the incident – she has not been arrested at this time.
Enquiries are on ongoing.