The incident occurred when the moped crashed into a bus stop in Selhurst Road at around 3.30pm on April 10.
According to police, the moped was being pursued by officers after failing to stop amid suspicions that it was a stolen vehicle.
Selhurst Road was closed in both directions for the evening following the incident, with a picture showing emergency services present.
A 17-year-old boy who had been riding the moped was injured alongside a member of the public.
Both were taken to hospital where their injuries have been deemed as non-life changing.
The teenager has now been arrested on suspicion of possession of controlled drugs, going equipped to steal, and aggravated vehicle taking.
Enquiries are underway.
A Met spokesperson said: “At approximately 15:30hrs on Thursday, 10 March a moped was in collision with a bus stop in Selhurst Road, SE25.
“At the time of the collision the moped was being pursued by police for failing to stop, as it was suspected to be a stolen vehicle.
“The rider of the moped – a 17-year-old boy – and a member of the public have been taken to hospital. Their injuries have been deemed non-life changing.
“The 17-year-old boy has been arrested on suspicion possession of controlled drugs, going equipped to steal and aggravated vehicle taking.
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“Enquiries into the circumstances continue.
“Anyone with information that could assist police is asked to call 101 or post @MetCC quoting reference CAD 4702/10APRIL.”
The London Ambulance Service has been contacted for a comment.
