The attack happened in Eynsford Road (Credit: Google Maps)
The victim was attacked in Eynsford Road, at the junction with Green Lane, shortly before 3pm on Monday, 6 September.
Police found her suffering from a laceration to her neck and she was rushed to hospital where her condition was assessed as not life-threatening.
Officers arrested another girl on suspicion of GBH with intent. She remains in police custody.
A crime scene will remain in place while officers investigate the attack.
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