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26 April 2017, 13:48
The teenager was arrested for the rape that took place in south east London last week.
On Wednesday, 19th April around 2pm the victim was walking through Sutcliffe Park in Greenwich when a man threatened her with a knife, raped her and stole her bag.
The woman was taken to hospital and has since been discharged and is now receiving support from specialist officers.
On Tuesday evening, 25th April, a 15-year-old was arrested on suspicion of rape, robbery and possession of an offensive weapon. He is currently being in custody at a south London police station.
Detectives are still appealing for witnesses and information about the attack.
If you have any information you can call Greenwich police on 101 or call Crimestoppers anonymously on 0800 555 111.